CN203737678U - Remote multifunctional cleaning sand removal equipment - Google Patents
Remote multifunctional cleaning sand removal equipment Download PDFInfo
- Publication number
- CN203737678U CN203737678U CN201420089461.6U CN201420089461U CN203737678U CN 203737678 U CN203737678 U CN 203737678U CN 201420089461 U CN201420089461 U CN 201420089461U CN 203737678 U CN203737678 U CN 203737678U
- Authority
- CN
- China
- Prior art keywords
- cleaning
- sand removal
- inert gas
- cleaning solvent
- flow container
- 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.)
- Expired - Lifetime
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 80
- 239000004576 sand Substances 0.000 title claims abstract description 58
- 239000002904 solvent Substances 0.000 claims abstract description 39
- 239000010865 sewage Substances 0.000 claims abstract description 34
- 239000007789 gas Substances 0.000 claims abstract description 21
- 239000011261 inert gas Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims abstract description 10
- 238000005406 washing Methods 0.000 claims description 40
- 239000012530 fluid Substances 0.000 claims description 10
- 238000009991 scouring Methods 0.000 claims description 10
- 238000010926 purge Methods 0.000 claims description 7
- 230000002000 scavenging effect Effects 0.000 claims description 7
- 238000005485 electric heating Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002516 radical scavenger Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model discloses remote multifunctional cleaning sand removal equipment. The remote multifunctional cleaning sand removal equipment comprises a frame, a sand removal cleaning system and an inert gas replacement system, wherein the sand removal cleaning system and the inert gas replacement system are arranged on the frame; the sand removal cleaning system comprises a cleaning device and a dirt recycling device, the cleaning device comprises a cleaning solvent pot and a cleaning sand removal pump set, the cleaning solvent pot is provided with a heating device, the cleaning sand removal pump set is communicated with the cleaning solvent pot through a pipeline, and the liquid outlet of the cleaning sand removal pump set is communicated with the sand removal port in a pressure container through a flexible pipe; the dirt recycling device comprises a sewage collection tank provided with the sand discharging port, the drain outlet in the pressure container is communicated with the inlet of the sewage collection tank through a drain pipeline, the outlet of the sewage collection tank is communicated with the cleaning solvent pot, and the sewage collection tank is provided with a cyclone desander; the inert gas replacement system comprises an inert gas storage pot and a blowing pipe connected to the gas outlet of the inert gas storage pot, and the gas outlet of the blowing pipe extends into the pressure container. The remote multifunctional cleaning sand removal equipment is compact in structure, convenient to operate, environmentally friendly and good in sand removal effect, and saves water.
Description
Technical field
The utility model relates to oil gas field pressure vessel cleaning technique, and the remote multifunctional that especially relates to a kind of high sulfur Gas Fields, field pressure container cleans scouring equipment.
Background technology
Key equipment as in gas gathering station of natural gas gas production factory flow process: " metering separator, torch divide flow container " equal pressure container plays the very important effects such as the processing of gas, liquid separation and sulphur-containing exhaust gas.
Because silt particle amount entrained in natural gas production is higher, the impurity such as the silt carrying in high sulfur-containing natural gas through the delay of certain hour, can be deposited to container bottom from suspended state in container.Due to continuous precipitation, the accumulation of silt, not only can cause the dischargeable capacity of container to reduce, also can cause each gas gathering station to measure the phenomenon of the frequent jams of the pressure reduction increase of appearance front and back, the obstruction of metering separator blowdown pipeline and torch entrucking pipeline in various degree, gas field is steadily produced and causes great impact and potential safety hazard.
The technology of pressure vessel inside being carried out to sand washing cleaning is a lot, and each oil gas field has the processing mode of oneself.Remove as metering separator, torch divide the silt of the bottom settlingses such as flow container for high sulfur Gas Fields common equipment, what adopt at present is with 700 type fracturing unit truck injection water power, the nozzle of the injection sand washing machine arranging in container forms high-speed jet, after being swept away, stirred, long-pending sand in container discharges by sand removing hole, recycle airtight suction-type sewer scavenger by the dirt amount discharge container with silt particle, reach the object of sand removal.
In use, this cleaning exists following not enough:
1, employ main equipment many: large-scale cement car, suction-type sewer scavenger, clear water car, engineering truck, clear water storage tank etc.;
2, the scope of operation is large;
3, use the former water yield large;
4, sewage quantity is large;
5, sand washing DeGrain;
6, washing out sedimental amount is difficult for determining;
7, effect assessment difficulty;
8, sediment outflow pipe easily stops up and causes normally sand washing;
9, interim pipeline cannot effectively be replaced, and can cause that residue in pipeline is shed, water clock is to ground, causes the defects such as many places ground pollution;
10, the sand washing nozzle location, the angle that in container, arrange are relatively fixing, rinse dead angle more.
Summary of the invention
The purpose of this utility model is to provide a kind of compact conformation, easy to operate, and scouring equipment is cleaned in desanding, scale removal thoroughly remote multifunctional.
For achieving the above object, the utility model can be taked following technical proposals:
Remote multifunctional described in the utility model cleans scouring equipment, comprises support body and is placed in desanding purging system and the inert gas replacement system on described support body;
Described desanding purging system comprises cleaning device and dirt retracting device, described cleaning device comprises that the liquid outlet of described cleaning sand washing pump group is connected with the sand washing port in pressure vessel by connecting hose with the cleaning solvent flow container of heater with by the coupled logical cleaning sand washing pump group of pipeline; Described dirt retracting device comprises the sewage collecting pool that offers sand removing hole, sewage draining exit in pressure vessel is connected with the import of described sewage collecting pool through blowoff line, the outlet of described sewage collecting pool is connected with described cleaning solvent flow container, on described sewage collecting pool, is provided with hydrocyclone;
Described inert gas replacement system comprises inert gas storage tank and is connected to the scavenging conduit on described inert gas storage tank gas outlet, and the gas outlet of described scavenging conduit extends to pressure vessel inside.
Described heater is made up of nonstorage calorifier and attemperator; Described nonstorage calorifier is heating clamber and the self-circulating pump being arranged on support body, the liquid outlet being opened on described cleaning solvent flow container sidewall is connected with described self-circulating pump inlet by drain pipe, and the heating tube being connected with described self-circulating pump liquid outlet is in heating clamber extends into described cleaning solvent flow container; Described attemperator is the electric heating tube group that is fixedly mounted on described cleaning solvent flow container bottom.
Described cleaning solvent flow container inner chamber is divided into back to the fluid chamber and go out sap cavity by filter screen, and described back to the fluid chamber is connected with the outlet of described sewage collecting pool, described in go out sap cavity and be connected with cleaning sand washing pump group.
Be opened in the liquid outlet place that described cleaning solvent flow container goes out on sap cavity sidewall and be provided with secondary filter.
On the pipeline at described cleaning sand washing pump group liquid outlet place, be provided with the forward and reverse exchange flusher being formed by valve sets and connecting hose.
The utility model has the advantage of compact conformation, easy to operate, when work, only need to rush liquid flexible pipe, blowdown flexible pipe and the corresponding connection of sand washing port, sewage draining exit in pressure vessel, inert gas purge pipe is sent in pressure vessel inner chamber, can carry out long-range flushing to pressure vessel inside, the scope of operation is little; The airtight operation of flushing process, can not pollute atmospheric environment; Dirt and the processing of cleaning fluid ON-LINE SEPARATION, recycling, saved water resource greatly; Clean sand washing successful, the deposit washing out can quantize, and easily evaluates and cleans sand washing effect; Clean the forward and reverse exchange flusher being formed by multiple valves arranging on the pipeline at sand washing pump group liquid outlet place, can solve sand washing port, sewage draining exit stops up and causes the normally problem of sand washing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, remote multifunctional described in the utility model cleans scouring equipment, comprises support body 1 and is placed in desanding purging system and the inert gas replacement system on support body 1, and for convenience of mobile, support body 1 can be with road wheel;
Desanding purging system comprises cleaning device and dirt retracting device, cleaning device comprises with the cleaning solvent flow container 2 of heater with by the coupled logical cleaning sand washing pump group 3 of pipeline, on the connecting pipe between cleaning solvent flow container 2 and cleaning sand washing pump group 3, be provided with control valve F1, the liquid outlet of this cleaning sand washing pump group 3 is connected with the sand washing port in pressure vessel by connecting hose; Dirt retracting device comprises the sewage collecting pool 5 that offers sand removing hole 4, sewage draining exit in pressure vessel is connected with the import of sewage collecting pool 5 through blowoff line and control valve F2, the outlet of sewage collecting pool 5 is connected with cleaning solvent flow container 2 through solvent recovery pipeline and by-pass valve control F3, is provided with hydrocyclone 6 on sewage collecting pool 5;
Inert gas replacement system comprises inert gas (nitrogen) storage tank 7 and is connected to the scavenging conduit 8 on inert gas storage tank 7 gas outlets, the gas outlet of scavenging conduit 8 extends to pressure vessel inside, is provided with controls air valve F4 at inert gas storage tank 7 gas outlet places.
For ensureing that Chemical cleaning solvent in cleaning solvent flow container 2 dissolves fast and ensures the normal use in whole cleaning process, heater is made up of nonstorage calorifier and attemperator: nonstorage calorifier preheats solvent and uses before cleaning, structure is heating clamber 9(gas heating or the electrical heating chamber being arranged on support body 1) and self-circulating pump 10, the liquid outlet being opened on cleaning solvent flow container 2 sidewalls is connected with self-circulating pump 10 inlets by the drain pipe with control valve F5, the heating tube 11 being connected with self-circulating pump 10 liquid outlets extends in cleaning solvent flow container 2 through heating clamber 9 and control valve F6, attemperator is the electric heating tube group 12 that is fixedly mounted on cleaning solvent flow container 2 bottoms, plays the effect that keeps solvent temperature in the time of normal wash.
For ensureing the clean of cleaning solvent, cleaning solvent flow container 2 inner chambers are divided into back to the fluid chamber 14 and are gone out sap cavity 15 by filter screen 13, and back to the fluid chamber 14 is connected with the outlet of sewage collecting pool 5, go out sap cavity 15 and are connected with cleaning sand washing pump group 3; Be opened in the liquid outlet place that cleaning solvent flow container goes out on sap cavity 15 sidewalls and be also provided with secondary filter 16.
Due to the pressure vessel being cleaned in use, deposit can stop up sand washing port and sewage draining exit, therefore on the pipeline that cleans sand washing pump group liquid outlet place, be provided with the forward and reverse exchange flusher being formed by valve sets and connecting hose, can before cleaning, first carry out anti-flow process to the sewage draining exit of high-pressure bottle and rinse dredging, and then carry out normal cleaning.The structure following (certainly also can adopt other can realize the forward and reverse exchange flusher of this function) of the utility model forward and reverse exchange flusher used:
The drain pipe that cleans sand washing pump group 3 is diverted in 17,18,19 3 connecting hoses by master control valve F7, wherein connecting hose 17,18 is connected with two sand washing ports of pressure vessel respectively, in connecting hose 17, be provided with sub-control valve F8, in connecting hose 18, be provided with sub-control valve F9; In connecting hose 19, be disposed with by-pass valve control F10 and F11, F11 is connected by the sewage draining exit of connecting hose and pressure vessel; Bypass in the connecting hose between by-pass valve control F10 and F11 has with cleaning solvent flow container and goes out the pipeline of removing contamination that sap cavity 15 is connected, and is provided with control valve F12 on this removes contamination pipeline.
When cleaning, first open by-pass valve control F10, F11, F2, F3 and master control valve F7, close sub-control valve F8, F9 and control valve F12, cleaning solvent carries out backwash dredging by metal hose to the pressure vessel base blowdown mouth being cleaned by F11; Then adjusting flow process just cleans: closing control valve F10, F11, open sub-control valve F8, F9 and control valve F2, F3, cleaning solvent enters by metal hose the sand washing port that is cleaned container through the output of sub-control valve F8, F9 internal tank is cleaned to sand washing.
Clean after complete quitting work, cleaning solvent flow container can deposit certain dirt at the bottom of going out sap cavity 15 tanks, at this moment valve F8, F9, F11 can be closed, open F7, F10, F12, remove being deposited on the dirt that cleaning solvent flow container goes out at the bottom of sap cavity 15 tanks by inner loop pipeline, for the later work of removing contamination ready.
Operation principle of the present utility model is:
In the time that needs rinse a certain pressure vessel, support body 1 is placed in outside gas gathering station, in the first class fire district gas gathering station entering in production, sand washing port in connecting hose and the pressure vessel of cleaning sand washing pump group 3 liquid outlets is connected, sewage draining exit, blowoff line and control valve F2 in pressure vessel connect, and the outlet of the scavenging conduit connecting on nitrogen pot 8 is sent in pressure vessel.Cleaning sand washing pump group 3 in this cleaning equipment and all pipelines all use L360 stainless steel material.
According to formula enclosed cleaning solvent flow container 2 interior cleaning fluid is prepared complete, cycle balance, utilize nonstorage calorifier to be heated temperature required be incubated with attemperator afterwards, open inert gas replacement system, pass in pressure vessel by nitrogen, in pressure vessel poisonous, pernicious gas is replaced goes out, enter in the discarded absorption container of pressure vessel self and be absorbed conversion, nontoxic discharge, start and clean sand washing pump group 3, regulate required flow, pressure can start to carry out periodic duty: cleaning fluid cleans sand washing pump group 3 by high power the deposit in container is washed away, make it to carry out chemical reaction, reach sand washing, the object of cleaning, then the dirty sewage input blowoff line of dirt will be carried, enter in sewage collecting pool 5, on sewage collecting pool 5 arrange hydrocyclone 6(can adopt ZQJ desanding cleaner) automatic spiral flow pipe significantly stir, carry out desanding purification by its desanding device, thickness solid phase particles in sewage is all eliminated, discarded dirt is discharged collection and treatment through sand removing hole 4, the sewage producing adds in the back to the fluid chamber 14 that enters again cleaning solvent flow container 2 after medicament and recycles.
Claims (5)
1. remote multifunctional cleans a scouring equipment, it is characterized in that: it comprises support body (1) and is placed in desanding purging system and the inert gas replacement system on described support body (1);
Described desanding purging system comprises cleaning device and dirt retracting device, described cleaning device comprises that the liquid outlet of described cleaning sand washing pump group (3) is connected with the sand washing port in pressure vessel by connecting hose with the cleaning solvent flow container (2) of heater with by the coupled logical cleaning sand washing pump group (3) of pipeline; Described dirt retracting device comprises the sewage collecting pool (5) that offers sand removing hole (4), sewage draining exit in pressure vessel is connected with the import of described sewage collecting pool (5) through blowoff line, the outlet of described sewage collecting pool (5) is connected with described cleaning solvent flow container (2), is provided with hydrocyclone (6) on described sewage collecting pool (5);
Described inert gas replacement system comprises inert gas storage tank (7) and is connected to the scavenging conduit (8) on described inert gas storage tank (7) gas outlet, and the gas outlet of described scavenging conduit (8) extends to pressure vessel inside.
2. remote multifunctional according to claim 1 cleans scouring equipment, it is characterized in that: described heater is made up of nonstorage calorifier and attemperator; Described nonstorage calorifier is for being arranged on heating clamber (9) and the self-circulating pump (10) on support body (1), the liquid outlet being opened on described cleaning solvent flow container (2) sidewall is connected with described self-circulating pump (10) inlet by drain pipe, and the heating tube (11) being connected with described self-circulating pump (10) liquid outlet is in heating clamber (9) extends into described cleaning solvent flow container (2); Described attemperator is for being fixedly mounted on the electric heating tube group (12) of described cleaning solvent flow container (2) bottom.
3. remote multifunctional according to claim 1 cleans scouring equipment, it is characterized in that: described cleaning solvent flow container (2) inner chamber is divided into back to the fluid chamber (14) and is gone out sap cavity (15) by filter screen (13), described back to the fluid chamber (14) is connected with the outlet of described sewage collecting pool (5), described in go out sap cavity (15) with clean sand washing pump group (3) be connected.
4. remote multifunctional according to claim 3 cleans scouring equipment, it is characterized in that: be opened in the liquid outlet place that described cleaning solvent flow container goes out on sap cavity (15) sidewall and be provided with secondary filter (16).
5. remote multifunctional according to claim 1 cleans scouring equipment, it is characterized in that: on the pipeline at described cleaning sand washing pump group liquid outlet place, be provided with the forward and reverse exchange flusher being made up of valve sets and connecting hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089461.6U CN203737678U (en) | 2014-03-01 | 2014-03-01 | Remote multifunctional cleaning sand removal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089461.6U CN203737678U (en) | 2014-03-01 | 2014-03-01 | Remote multifunctional cleaning sand removal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203737678U true CN203737678U (en) | 2014-07-30 |
Family
ID=51337542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420089461.6U Expired - Lifetime CN203737678U (en) | 2014-03-01 | 2014-03-01 | Remote multifunctional cleaning sand removal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203737678U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907292A (en) * | 2015-04-14 | 2015-09-16 | 濮阳市宝捷万佳实业有限公司 | High sour gas field gas gathering station sand flushing cleaning process |
| CN112275739A (en) * | 2020-11-28 | 2021-01-29 | 濮阳兴泰金属结构制品有限公司 | Cleaning device is equipped in sulphur of wading of mixed heat source |
| CN112474631A (en) * | 2020-11-28 | 2021-03-12 | 濮阳兴泰金属结构制品有限公司 | Mobile hot washing station for sulfur deposition equipment of gas gathering station |
-
2014
- 2014-03-01 CN CN201420089461.6U patent/CN203737678U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907292A (en) * | 2015-04-14 | 2015-09-16 | 濮阳市宝捷万佳实业有限公司 | High sour gas field gas gathering station sand flushing cleaning process |
| CN104907292B (en) * | 2015-04-14 | 2017-10-27 | 濮阳市宝捷万佳实业有限公司 | A kind of high sulfur Gas Fields gas gathering station sand washing cleaning |
| CN112275739A (en) * | 2020-11-28 | 2021-01-29 | 濮阳兴泰金属结构制品有限公司 | Cleaning device is equipped in sulphur of wading of mixed heat source |
| CN112474631A (en) * | 2020-11-28 | 2021-03-12 | 濮阳兴泰金属结构制品有限公司 | Mobile hot washing station for sulfur deposition equipment of gas gathering station |
| CN112275739B (en) * | 2020-11-28 | 2023-12-12 | 濮阳兴泰金属结构制品有限公司 | Sulfur-related equipment cleaning device with mixed heat source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 457001, Henan, Puyang province Pu east industrial agglomeration area south of the North Ring Road Patentee after: RICH HIGH-TECH Co.,Ltd. Address before: 457001 Dongpu industrial agglomeration area, Zhongyuan Road, Henan, Puyang Patentee before: Henan Rich Pipeline Engineering Technology Co.,Ltd. |
|
| 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: Remote multifunctional cleaning sand removal equipment Effective date of registration: 20170809 Granted publication date: 20140730 Pledgee: Bank of China Limited by Share Ltd. Puyang science and technology new village branch Pledgor: RICH HIGH-TECH Co.,Ltd. Registration number: 2017410000021 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200408 Granted publication date: 20140730 Pledgee: Bank of China Limited by Share Ltd. Puyang science and technology new village branch Pledgor: RICH HIGH-TECH Co.,Ltd. Registration number: 2017410000021 |
|
| 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: Remote multifunctional cleaning sand removal equipment Effective date of registration: 20200408 Granted publication date: 20140730 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: RICH HIGH-TECH Co.,Ltd. Registration number: Y2020990000291 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211117 Granted publication date: 20140730 Pledgee: Bank of China Limited by Share Ltd. Puyang branch Pledgor: RICH HIGH-TECH Co.,Ltd. Registration number: Y2020990000291 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |