CN101337170A - Discharging method and device of autoclave condensation water - Google Patents
Discharging method and device of autoclave condensation water Download PDFInfo
- Publication number
- CN101337170A CN101337170A CNA2008100209914A CN200810020991A CN101337170A CN 101337170 A CN101337170 A CN 101337170A CN A2008100209914 A CNA2008100209914 A CN A2008100209914A CN 200810020991 A CN200810020991 A CN 200810020991A CN 101337170 A CN101337170 A CN 101337170A
- Authority
- CN
- China
- Prior art keywords
- case
- still kettle
- operated valve
- catchments
- liquid level
- 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.)
- Granted
Links
Images
Landscapes
- Control Of Non-Electrical Variables (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention relates to a method for discharging the condensation water of a still kettle, and the method belongs to the technical field of pressure containers. The still kettle is heated for temperature rise, when the temperature in the still kettle is equal to or lower than 100 DEG C, a controller outputs signals at intervals to open a pneumatic valve arranged on a header tank for discharging water according to the detected liquid level or the set discharge interval time of condensation water; when the temperature in the still kettle is larger than or equal to 100 DEG C, the controller output signals at intervals to open the pneumatic valve arranged on the header tank for discharging water according to the detected temperature difference between the upper and the lower parts of the kettle wall or the liquid level, at the same time, a thermal steam trap on a collecting pipe arranged between the bottom part of the still kettle and the header tank also discharges water. The method has the advantages that the condensation water of the still kettle can be completely and fast discharged; the use is safe and reliable; and the normal use of the still kettle can be ensured.
Description
Technical field
The present invention relates to a kind of discharge method and device thereof of autoclave condensation water, belong to the pressure vessel technology field that is used for building materials, chemical industry, light industry, weaving etc.
Background technology
Still kettle is a kind of pressure vessel that is widely used in industrial circles such as building materials, chemical industry, medicine, rubber.According to the properties of product requirement, generally be with saturated vapor for adding thermal medium, be placed in the still, under the condition of high temperature and high pressure, product generation physics and chemical reaction reach the expection requirement.In the steam press maintenance process, be benchmark with the temperature, the product steam press maintenance is divided into intensification, constant temperature and cooling three phases.Because goods and saturated vapor generation heat exchange will produce a large amount of condensed waters in intensification and constant temperature stage, as untimely discharging, condensed water will accumulate in the still kettle bottom, increase the upper and lower temperature difference of still wall, and cause still kettle arch distortion.On the other hand, owing to also dissolved in the corrosive substance that comes from product in a large number in the condensed water, increased the solubility of oxygen in condensed water under the condition of high temperature again.Under above-mentioned Several Factors effect, the still kettle that gathers too much condensed water will corrode very soon, makes that material production is damaged, mis-behave, shortens still kettle service life, therefore, discharging condensed water fast, in time is the key of guaranteeing that still kettle normally uses, increases the service life.
The tapping equipment of conventional autoclave condensation water mainly is made of blowdown drum and thermodynamic trap.The still kettle bottom connects a blowdown drum near the end that opens the door, connect a thermodynamic trap on the blowdown drum, condensed water in the still is discharged by thermodynamic trap, and the blowdown drum bottom also connects a manual blowdown valve, accumulates in the foreign material of blowdown drum inside with discharging.Though this kind condensate drain has simple in structure, easy for installation, cheap advantage, and in being widely used in, the small dimension still kettle.But still kettle is in the whole steam press maintenance stage, the water yield of autoclave condensation water is very inhomogeneous, the still kettle temperature rise period is especially being opened period beginning, temperature in the kettle is lower than 100 ℃, condensation water quantity is very big, and at this moment, steam pressure is lower in the still, thermodynamic trap is little because of dynamic pressure, the static pressure variation of steam and condensed water, and flap can not in time be discharged condensed water because of moving.Moreover because condensation water quantity is excessive, the discharge area deficiency is so can't play effect timely, the quick drain condensed water; In addition, because the relative volume of blowdown drum is less, the accumulated inside foreign material need often discharging, and the manual blowdown valve is installed in the blowdown drum minimum point, generally is in melt pit, and therefore operation is very difficult, exists the danger that operating personnel are scalded by high-temperature steam, and potential safety hazard is arranged.
Summary of the invention
The purpose of this invention is to provide a kind of energy thoroughly, the discharge method and the device thereof of the autoclave condensation water of quick drain condensed water.
The present invention is the technical scheme that achieves the above object: a kind of discharge method of autoclave condensation water is characterized in that:
(1), still kettle heat temperature raising, in temperature in the kettle≤100 ℃, the liquid level gauge that is installed in the still kettle bottom and catchments between the case is delivered to detected liquid level amount signal in the controller, controller is according to detected liquid level amount or set the condensed water discharge interval time, and the interval output signal is opened the pneumatic operated valve that is installed on the case that catchments and carried out draining; When temperature in the kettle 〉=100 ℃, the temperature sensor that is installed in still kettle still wall top and bottom will detect still wall upper and lower temperature difference signal and deliver in the controller, or be installed in the still kettle bottom and the liquid level gauge that catchments between the case is delivered to detected liquid level amount signal in the controller, controller is according to detected still wall upper and lower temperature difference value or liquid level amount, at interval output signal is opened the pneumatic operated valve that is installed on the case that catchments and is carried out draining, is installed in bottom the still kettle simultaneously and catchments that the thermodynamic trap on the manifold trunk also carries out draining between the case;
(2), in the still during heated at constant temperature, by being installed in the still kettle bottom and catchmenting that the thermodynamic trap on the manifold trunk carries out draining between the case.
The tapping equipment of autoclave condensation water of the present invention, it is characterized in that: comprise manifold trunk, case, thermodynamic trap and pneumatic operated valve catchment, three above manifold trunk tops communicate with the still kettle bottom connection, the bottom of each manifold trunk is connected with the case that catchments and communicates, the case that catchments between the adjacent manifold trunk is provided with the expansion joint of waveform, each manifold trunk is connected with thermodynamic trap, and an end of the case that catchments is equipped with pneumatic operated valve; Described still kettle still wall top and bottom are equipped with temperature sensor, the bottom of still kettle and catchment and between the case liquid level gauge is installed, the output of liquid level gauge is connected with the input of controller with the output of temperature sensor, the output of controller is connected with the source of the gas control valve, and the source of the gas control valve is connected with the executive item of pneumatic operated valve.
The present invention has the following advantages after adopting technique scheme:
1, discharging fast, thoroughly.The present invention is provided with the collection case that catchments in the bottom of still kettle, catchment and pneumatic operated valve is installed on the case, therefore can produce the very large characteristics of condensation water quantity according to the still kettle temperature rise period, can be by setting condensed water discharge interval time or still kettle bottom and liquid level amount between the case or the temperature signal about the still wall of catchmenting, open the pneumatic operated valve on the case that catchments at interval, by pneumatic operated valve and thermodynamic trap combination discharging condensed water, condensed water discharge capacity of the present invention is big, can be applicable to big specification, big capacity still kettle, reduce condensed water and gathered the still kettle thermal deformation that causes, the normal use of still kettle has been guaranteed in corrosion.
2, thorough, the quick drain of low temperature section condensed water have been realized.The present invention carries out district drainage when still kettle heats up, in temperature in the kettle≤100 ℃, according to the still kettle bottom and catchment between the case the liquid level amount or set the condensed water discharge interval time, control pneumatic operated valve draining at interval, reach discharging fast, characteristics completely, it is little because of dynamic pressure, the static pressure variation of steam and condensed water to have overcome thermodynamic trap, and discharge area is little, can't satisfy the shortcoming of low temperature section emission request.
3, safe and reliable.The present invention adopts the collection box structure that catchments, because the tankage of catchmenting is bigger, an end connects pneumatic operated valve, when opening pneumatic operated valve, the less foreign material such as material slag of particle can together be discharged with condensed water, therefore in each steam press maintenance circulation, need not to open the artificial blowdown of manual blowdown valve, guaranteed safety.
4, can reduce the heat loss of steam press maintenance.The present invention opens pneumatic operated valve at interval in the still kettle temperature-rise period, effectively reduced the heat loss of steam press maintenance.
5, multiple spot compiles, concentrates discharging.The present invention is opened in the still kettle lowest part with a plurality of emission points of condensed water, quantity is provided with according to still length, therefore a plurality of manifold trunks are connected with the case that catchments and communicate, and thermodynamic trap is installed on each manifold trunk, by a plurality of thermodynamic trap drainings, condensed water can be concentrated and discharge by pneumatic operated valve.
6, reduce the thermal stress deformation of the case that catchments.The expansion joint of waveform has all been installed in the present invention additional on the case that catchments between adjacent two manifold trunks, can reduce because factors such as temperature, materials, the still kettle that forms and the case thermal expansion amount difference of catchmenting are avoided producing excessive thermal stress, and are caused the damage of the case that catchments.
7, realized real-time monitoring to condensation water quantity in the still.The present invention is in the bottom of still kettle and catchment and between the case liquid level gauge is installed, liquid level gauge except that teletransmission liquid level amount signal to controller, possess simultaneously with Presentation Function on the spot.
Description of drawings
Below in conjunction with accompanying drawing enforcement of the present invention is described in further detail.
Fig. 1 is the structural representation of the tapping equipment of autoclave condensation water of the present invention.
Fig. 2 is that the A of Fig. 1 is to structural representation.
Wherein: 1-controller, 2-still kettle, 3-temperature sensor, 4-source of the gas control valve, 5-first hand-operated valve, the 6-executive item, 7-pneumatic operated valve, 8-second hand-operated valve, 9-thermodynamic trap, 10-the 3rd hand-operated valve, 11-manifold trunk, 12-blowoff valve, 13-expansion joint, the 14-collection case that catchments, the 15-liquid level gauge.
The specific embodiment
The discharge method of autoclave condensation water of the present invention, in still kettle intensification carrying out segmentation discharging, in temperature in the kettle≤100 ℃, the liquid level gauge that is installed in the still kettle bottom and catchments between the case is delivered to detected liquid level amount signal in the controller, whether controller surpasses the liquid level amount of setting according to detected liquid level amount, surpass the liquid level amount of setting when the liquid level amount that detects, or controller is according to setting the autoclave condensation water discharge interval time, output signal makes the pneumatic operated valve action at interval, carry out the interval and get rid of condensed water, the executive item that the present invention controls pneumatic operated valve by controller control source of the gas control valve moves, and the pneumatic operated valve that is installed on the case that catchments is opened or closed to executive item.The autoclave condensation water discharge interval time of the present invention, can determine according to goods kind, steam curing process field adjustable.When temperature in the kettle 〉=100 ℃, the temperature sensor that then is installed in still kettle still wall top and bottom will detect still wall upper and lower temperature difference signal and deliver in the controller, or be installed in the still kettle bottom and the liquid level gauge that catchments between the case is delivered to detected liquid level amount signal in the controller, whether controller surpasses temperature approach or the liquid level amount of setting according to detected still wall upper and lower temperature difference value or liquid level amount, when the temperature approach that detects or liquid level amount surpass temperature approach or the liquid level amount of setting, the spacing of controls output signal makes pneumatic operated valve get rid of condensed water at interval, at this moment, be installed in still kettle bottom and catchment that the thermodynamic trap on the manifold trunk also carries out draining between the case, reach the purpose of quick eliminating condensed water.In still during heated at constant temperature, then by being installed in still kettle bottom and catchmenting that the thermodynamic trap on the manifold trunk carries out draining between the case, the present invention takes different discharging modes to get rid of condensed water according to the condensation water quantity in each stage still kettle, reaches the purpose of thorough quick drain condensed water.
See Fig. 1, shown in 2, the tapping equipment of autoclave condensation water of the present invention, comprise manifold trunk 11, case 14 catchments, thermodynamic trap 9 and pneumatic operated valve 7, three above manifold trunk 11 tops are connected with still kettle 2 bottoms and communicate, manifold trunk 11 bottoms are connected with the case 14 that catchments and communicate, make still kettle 2 multiple spots carry out draining, the case 14 that catchments between the adjacent manifold trunk 11 is provided with the expansion joint 13 of waveform, avoid producing excessive thermal stress, and cause the damage of the case 14 that catchments, each manifold trunk 11 is connected with the thermodynamic trap 9 that communicates, for ease of thermodynamic trap 9 is keeped in repair, the entrance point of thermodynamic trap 9 also is equipped with the 3rd hand-operated valve 10 and is connected with the case 14 that catchments and communicates, the end of case 14 of catchmenting is equipped with pneumatic operated valve 7, but of the present invention catchment case 14 two groups or more be arranged on the bottom of still kettle 2, and the bottom of the case 14 that catchments also is equipped with blowoff valve 12, the quantity of case 14 of catchmenting can be according to the length setting of still kettle 2, any end of each case 14 that catchments all is equipped with pneumatic operated valve 7, makes still kettle 2 interior condensed waters reach multiple spot and compiles, concentrate the purpose of discharging.For ease of pneumatic operated valve 7 is keeped in repair, the two ends of pneumatic operated valve 7 are serially connected with first hand-operated valve 5 respectively, and at pneumatic operated valve 7 two ends and connect second hand-operated valve 8 and form valve groups, this pneumatic operated valve 7, first hand-operated valve 5, second hand-operated valve 8 and switch valves such as all available ball valve of the 3rd hand-operated valve 10, stop valve, butterfly valve or gate valve.
See Fig. 1, shown in 2, the top and the bottom of still kettle 2 still walls of the present invention are equipped with temperature sensor 3, temperature sensor 3 can be installed along the top and the bottom multiple spot of still wall, the bottom of still kettle 2 and catchment liquid level gauge 15 is installed between the case 14, to measure the liquid storage amount in the still kettle 2, the output of the output of liquid level gauge 15 and temperature sensor 3 is connected with the input of controller 1, with output temperature signal and liquid level amount signal, this controller 1 adopts existing microprocessor or industrial computer and writes performing a programme, after 1 pair of controller compares with the temperature approach of input and liquid level amount, or according to setting the autoclave condensation water discharge interval time, output is opened or shutdown signal, the output of controller 1 is connected with the spool of source of the gas control valve 4, source of the gas control valve 4 is connected with source of the gas, and source of the gas control valve 4 is connected with the executive item 6 of pneumatic operated valve 7, this source of the gas control valve 4 adopts magnetic valve, executive item 6 is connected with the spool of pneumatic operated valve 7, this executive item 6 adopts cylinder, when still kettle 2 reaches the liquid level amount that sets condensed water discharge interval time or setting or still wall upper and lower temperature difference value, controller 1 output start signal, make the executive item 6 of pneumatic operated valve 7 connect source of the gas by source of the gas control valve 4, executive item 6 is opened pneumatic operated valve 7, carry out draining, after pneumatic operated valve 7 is opened certain hour, controller 1 sends cut-off signals, source of the gas control valve 4 is closed gas circuit, and executive item 6 is about pneumatic operated valve 7.
When still kettle 2 door closure is closed put in place and lock after, relief valve cuts out, container can enter pressure state, be opposite to the interior goods of still kettle and pass to the saturated vapor heating, when temperature in the kettle≤100 ℃, controller 1 is according to detected liquid level amount or set the autoclave condensation water discharge interval time, output signal makes pneumatic operated valve 7 actions get rid of condensed water, after pneumatic operated valve 7 is opened certain hour, controller 1 sends cut-off signals, source of the gas control valve 4 is closed gas circuit, and executive item 6 is closed pneumatic operated valve 7, pneumatic operated valve 7 is got rid of at interval catchment the interior condensed water of case 14.When temperature in the kettle 〉=100 ℃, controller 1 is according to detected still wall upper and lower temperature difference value or liquid level amount, at interval output signal is got rid of pneumatic operated valve 7 to catchment the interior condensed water of case 14 at interval, thermodynamic trap 9 is also got rid of the condensed water that enters in the manifold trunk 11 simultaneously, when still kettle 2 enters heated at constant temperature during the stage, thermodynamic trap 9 is directly got rid of the condensed water in the manifold trunk 11, when still kettle 2 coolings, open air bleeding valve, carry out the pressure release cooling, steam is discharged, when Pressure gauge is shown to zero-bit, by relief valve the overbottom pressure of still kettle 2 is discharged, still kettle 2 internal pressures are let out and are removed, can open door closure, take out goods.
Claims (5)
1, a kind of discharge method of autoclave condensation water is characterized in that:
(1), still kettle heat temperature raising, in temperature in the kettle≤100 ℃, the liquid level gauge that is installed in the still kettle bottom and catchments between the case is delivered to detected liquid level amount signal in the controller, controller is according to detected liquid level amount or set the condensed water discharge interval time, and the interval output signal is opened the pneumatic operated valve that is installed on the case that catchments and carried out draining; When temperature in the kettle 〉=100 ℃, the temperature sensor that is installed in still kettle still wall top and bottom will detect still wall upper and lower temperature difference signal and deliver in the controller, or be installed in the still kettle bottom and the liquid level gauge that catchments between the case is delivered to detected liquid level amount signal in the controller, controller is according to detected still wall upper and lower temperature difference value or liquid level amount, at interval output signal is opened the pneumatic operated valve that is installed on the case that catchments and is carried out draining, is installed in bottom the still kettle simultaneously and catchments that the thermodynamic trap on the manifold trunk also carries out draining between the case;
(2), in the still during heated at constant temperature, by being installed in the still kettle bottom and catchmenting that the thermodynamic trap on the manifold trunk carries out draining between the case.
2, a kind of tapping equipment of autoclave condensation water, it is characterized in that: comprise manifold trunk (11), the case (14) that catchments, thermodynamic trap (9) and pneumatic operated valve (7), three above manifold trunks (11) top communicates with still kettle (2) bottom connection, the bottom of each manifold trunk (11) is connected with the case (14) that catchments and communicates, the expansion joint (13) that the case (14) that catchments between the adjacent manifold trunk (11) is gone up by waveform is tightly connected, each manifold trunk (11) is connected with thermodynamic trap (9), and an end of the case (14) that catchments is equipped with pneumatic operated valve (7); Described still kettle (2) still wall top and bottom are equipped with temperature sensor (3), the bottom of still kettle (2) and catchment liquid level gauge (15) is installed between the case (14), the output of the output of liquid level gauge (15) and temperature sensor (3) is connected with the input of controller (1), the output of controller (1) is connected with source of the gas control valve (4), and source of the gas control valve (4) is connected with the executive item (6) of pneumatic operated valve (7).
3, the tapping equipment of autoclave condensation water according to claim 2 is characterized in that: described catchment case (14) two groups or more be arranged on the bottom of still kettle (2), and the bottom of the case (14) that catchments also is equipped with blowoff valve (12).
4, the tapping equipment of autoclave condensation water according to claim 2 is characterized in that: the two ends of described pneumatic operated valve (7) are serially connected with first hand-operated valve (5) respectively and at pneumatic operated valve (7) two ends and connect second hand-operated valve (8) and form the valve group.
5, the tapping equipment of autoclave condensation water according to claim 4 is characterized in that: the entrance point of described thermodynamic trap (9) also is equipped with the 3rd hand-operated valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100209914A CN101337170B (en) | 2008-08-12 | 2008-08-12 | Discharging method and device of autoclave condensation water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100209914A CN101337170B (en) | 2008-08-12 | 2008-08-12 | Discharging method and device of autoclave condensation water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101337170A true CN101337170A (en) | 2009-01-07 |
| CN101337170B CN101337170B (en) | 2010-12-29 |
Family
ID=40211430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100209914A Expired - Fee Related CN101337170B (en) | 2008-08-12 | 2008-08-12 | Discharging method and device of autoclave condensation water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101337170B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285771A (en) * | 2013-06-14 | 2013-09-11 | 周刚 | Internal-kettle cooling and steam pumping system of still kettle |
| CN106863570A (en) * | 2017-03-31 | 2017-06-20 | 徐州工程学院 | A kind of drive device for driving still kettle kettle door switch |
| CN108636294A (en) * | 2018-05-30 | 2018-10-12 | 福建厚德节能科技发展有限公司 | A kind of autoclave condensation water processing recovery system |
| CN109083680A (en) * | 2018-10-30 | 2018-12-25 | 常熟市通防电器有限公司 | A kind of mining wireless deslagging jettison gear |
| WO2019233031A1 (en) * | 2018-06-06 | 2019-12-12 | 常州宏大智能装备产业发展研究院有限公司 | Drainage method for electrically controlled drainage apparatus of steam heating device |
| CN110748799A (en) * | 2019-11-25 | 2020-02-04 | 成都天保节能环保工程有限公司 | Condensate collecting and recycling system of steam reforming device and process method thereof |
| CN111707119A (en) * | 2020-05-27 | 2020-09-25 | 吴波 | Large-temperature-difference heat exchange waste heat recovery device |
| CN114800816A (en) * | 2022-03-17 | 2022-07-29 | 北新集团建材股份有限公司 | Still kettle and automatic water drainage method thereof |
| CN115351890A (en) * | 2022-08-03 | 2022-11-18 | 北新绿色住宅有限公司 | Still kettle |
-
2008
- 2008-08-12 CN CN2008100209914A patent/CN101337170B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103285771A (en) * | 2013-06-14 | 2013-09-11 | 周刚 | Internal-kettle cooling and steam pumping system of still kettle |
| CN103285771B (en) * | 2013-06-14 | 2015-06-24 | 周刚 | Internal-kettle cooling and steam pumping system of still kettle |
| CN106863570A (en) * | 2017-03-31 | 2017-06-20 | 徐州工程学院 | A kind of drive device for driving still kettle kettle door switch |
| CN106863570B (en) * | 2017-03-31 | 2019-01-01 | 徐州工程学院 | Driving device for driving autoclave door switch |
| CN108636294A (en) * | 2018-05-30 | 2018-10-12 | 福建厚德节能科技发展有限公司 | A kind of autoclave condensation water processing recovery system |
| CN108636294B (en) * | 2018-05-30 | 2024-07-02 | 福建厚德节能科技发展有限公司 | Still kettle condensate water treatment recovery system |
| WO2019233031A1 (en) * | 2018-06-06 | 2019-12-12 | 常州宏大智能装备产业发展研究院有限公司 | Drainage method for electrically controlled drainage apparatus of steam heating device |
| CN109083680B (en) * | 2018-10-30 | 2024-02-27 | 常熟市通防电器有限公司 | Wireless deslagging and water draining device for mine |
| CN109083680A (en) * | 2018-10-30 | 2018-12-25 | 常熟市通防电器有限公司 | A kind of mining wireless deslagging jettison gear |
| CN110748799A (en) * | 2019-11-25 | 2020-02-04 | 成都天保节能环保工程有限公司 | Condensate collecting and recycling system of steam reforming device and process method thereof |
| CN111707119A (en) * | 2020-05-27 | 2020-09-25 | 吴波 | Large-temperature-difference heat exchange waste heat recovery device |
| CN114800816A (en) * | 2022-03-17 | 2022-07-29 | 北新集团建材股份有限公司 | Still kettle and automatic water drainage method thereof |
| CN115351890A (en) * | 2022-08-03 | 2022-11-18 | 北新绿色住宅有限公司 | Still kettle |
| CN115351890B (en) * | 2022-08-03 | 2024-04-09 | 北新绿色住宅有限公司 | Still kettle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101337170B (en) | 2010-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101337170B (en) | Discharging method and device of autoclave condensation water | |
| CN102297412B (en) | Steam supply system | |
| CN113717795B (en) | Novel multifunctional steam distillation-dry distillation integrated equipment | |
| CN206656625U (en) | A kind of shell-and-tube heat exchanger for heated by natural gas of band leakage warning function | |
| CN107984603A (en) | A kind of building heat preservation ornament materials air-entrained concrete building block still kettle | |
| CN201251007Y (en) | Autoclave condensate water drainage device | |
| CN105987810B (en) | Method for detecting whether electromagnetic valve of nitrogen pressure tank fails | |
| CN108759518A (en) | A kind of condensed water heat-energy recovering apparatus based on biotechnology | |
| CN104762588B (en) | A kind of method for assessing sulphur iron compound passivation effect | |
| CN106669564B (en) | A kind of chloroacetate reaction kettle system of accident disposal | |
| CN205099395U (en) | Sewage treatment tank | |
| CN205024169U (en) | Adopt regenerator of nitrogen gas to get heat facility | |
| CN213222072U (en) | Automatic blowdown drainage system of still kettle | |
| CN201489006U (en) | Device for online-monitoring sugar content of double-effect vapor condensate | |
| CN206011534U (en) | Tyre vulcanization hot plate steam pipework draining system | |
| CN103867883B (en) | Normal-pressure drainage system unit for steam condensate water | |
| CN107935817B (en) | Device and method for recovering isooctyl alcohol from isooctyl p-dimethylaminobenzoate crude product | |
| CN207997407U (en) | A kind of building heat preservation ornament materials air-entrained concrete building block still kettle | |
| CN106556260B (en) | A kind of Air-Cooling Island inlet valve antifreeze control system | |
| CN208428541U (en) | A kind of automatic condensate drain system of vulcanizer thermal technology pipeline | |
| CN219016853U (en) | Steam protection system | |
| CN202139501U (en) | Circulating cooling device of alkali recycling furnace chute | |
| CN207405122U (en) | A kind of rising pipe evaporator automatic temperature control apparatus | |
| CN220614429U (en) | Still kettle condensed water organized discharge system | |
| CN206751705U (en) | PTA device oxidation system improved structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20160812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |