CN202791974U - Energy-saving device control system - Google Patents
Energy-saving device control system Download PDFInfo
- Publication number
- CN202791974U CN202791974U CN 201220492590 CN201220492590U CN202791974U CN 202791974 U CN202791974 U CN 202791974U CN 201220492590 CN201220492590 CN 201220492590 CN 201220492590 U CN201220492590 U CN 201220492590U CN 202791974 U CN202791974 U CN 202791974U
- Authority
- CN
- China
- Prior art keywords
- energy
- water
- organ pipe
- water tank
- drum
- 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 - Fee Related
Links
Images
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model relates to economizer technology, in particular to an energy-saving device control system which can prevent high-temperature steam from being produced inside an energy-saving device tube. The energy-saving device control system comprises a power device, a water tank, the energy-saving device tube, a control device and a drum, wherein the power device is respectively communicated with the water tank and a water inlet of the energy-saving device tube, a water outlet of the energy-saving device is communicated with the water tank, and then a closed circuit is formed. The control device is respectively communicated with the water tank and the drum to form a closed path. The power device is used for conveying water in the water tank into the energy-saving device tube in a circulating mode through the closed circuit. The energy-saving device tube is used for preheating water passing though the tube through flue gas entering the tube and conveying hot water produced through preheating back to the water tank, and water temperature in the water tank is increased. The control device is used for conveying the water with increased temperature in the water tank into the drum through the closed path when a collected height value of the water level in the drum is lower than a preset height value.
Description
Technical field
The utility model relates to the economizer technology, relates in particular to the energy-saving appliance control system.
Background technology
The temperature of the flue gas that boiler fired coal produces generally can reach 200 degree, and energy-saving appliance then is mounted in boiler tail, is used for a kind of device of the waste heat of this flue gas of recovery.The operation principle of energy-saving appliance is: the flue gas of discharging in the flue to boiler tail carries out the processing such as dedusting, flue gas after processing is sent in the pipeline of energy-saving appliance, and then the current that flow through in the pipeline to energy-saving appliance carry out preheating, produce hot water, and this hot water sent in the drum, this hot water is heated generation steam in drum, for industrial production etc.In this process, because energy-saving appliance is to have used the flue gas that boiler fired coal produces current are carried out preheating, and then the hot water that again preheating obtained sends into that heating produces steam in the drum, saved the energy, therefore is referred to as energy-saving appliance.
Referring to Fig. 1, the connecting line between mark 05 and mark 06, mark 05 and mark 03, other connecting line is water pipe; Particularly, traditional energy-saving appliance control system comprises: level sensor 01, drum 02, controller 03, water tank 04, motor 05, water pump 06, energy-conservation organ pipe 07, some water pipes; Water tank 04, water pump 06, energy-conservation organ pipe 07, drum 02 and some water pipes are interconnected, and form closed pipeline.Wherein, water pump by cross current in water tank; Level sensor is placed in the drum, is used for gathering the height value of water level in the drum, and the height value that collects is sent to controller; Controller connects motor, is used for when the height value that receives is lower than the trigger message of preset height value, and starter motor, and then the pump operation in the drive water tank extract the water in the water tank, carry out preheating through energy-conservation organ pipe, and then flow in the drum; When the height value that receives reached the trigger message of preset height value, the autoshutdown motor so that water pump shuts down, and then stopped to supply water.
Yet, in the closed pipeline that traditional energy-saving appliance control system forms, after water pump shuts down, current in the energy-conservation organ pipe can't enter in the drum, and owing to these water are still in the energy-conservation organ pipe always, and then the flue gas that is entered in the pipe heats repeatedly, until boiling, thereby produce high-temperature steam.Because the energy-saving appliance pipeline generally all is cast iron, the high-temperature steam that current vaporizations the produces pipeline of can breaking, thus shorten service life of energy-saving appliance.
The utility model content
The utility model proposes the energy-saving appliance control system, can prevent from producing in the energy-conservation organ pipe high-temperature steam.
In order to achieve the above object, the technical solution of the utility model is achieved in that
The energy-saving appliance control system comprises:
Power set, water tank, energy-conservation organ pipe, control device, drum;
Described power set are communicated with the water inlet of water tank and energy-conservation organ pipe respectively, and the delivery port of energy-conservation organ pipe is communicated with water tank, and then form the closed-loop path; Described control device is communicated with water tank and drum respectively, forms path;
Described power set are used for the water with described water tank, send in the described energy-conservation organ pipe by described closed loop cycle;
Described energy-conservation organ pipe is used for adopting the smoke convection in the access tube to cross the interior water preheat of pipe, and sends pre-thermogenetic hot water back to described water tank, so that the water temperature in the water tank raises;
Described control device when being used for that the height value of water level is lower than the preset height value in the described drum that collects, with the water after the described Water in Water Tanks temperature rise, is sent in the described drum by described path.
Preferably, further comprise vent valve, this vent valve is arranged on the delivery port of described energy-conservation organ pipe, is communicated with described energy-conservation organ pipe;
Described vent valve is used for gathering the pressure information in the described energy-conservation organ pipe, and sends to described control device;
Described control device is further used for, when the pressure values of carrying in the pressure information that the described vent valve that receives sends is higher than default take-off pressure values, and the valve open of control vent valve; The pressure values of carrying in the pressure information that the described vent valve that receives sends is lower than when presetting back the seat pressure values, the valve closing of control vent valve.
Preferably, be provided with pressure sensor in the described vent valve, be used for gathering the pressure information in the described energy-conservation organ pipe.
Preferably, further be provided with blowoff valve between the water inlet of described power set and described energy-conservation organ pipe, be used for when the inside of described closed-loop path is cleaned, discharging the sewage in the closed-loop path.
Preferably, further be provided with blowoff valve between described control device and the described drum, be used for when the inside of described path is cleaned the sewage in the drain passageway.
Preferably, further comprise the first spare duct and the second spare duct;
The two ends of described the first spare duct connect respectively the water inlet of the described energy-conservation organ pipe on the described closed-loop path and the water inlet of the described blowoff valve on the described path;
The two ends of described the second spare duct connect respectively an end of the described vent valve on the described closed-loop path and the delivery port of the described blowoff valve on the described path.
Preferably, described power set comprise the first water pump and are used for driving the first motor of described the first water pump.
Preferably, described the first motor is three phase electric machine.
Preferably, described control device comprises: level sensor, controller and Power Component:
Described level sensor is installed in the described drum, is used for gathering the elevation information of described drum middle water level, and sends to described controller;
Described controller is connected with described Power Component, is used for starting described Power Component when the height value that the described elevation information that receives described level sensor transmission carries is lower than the preset height value;
Described Power Component is used under the control of described controller the water after the described Water in Water Tanks temperature rise being sent in the described drum.
Preferably, the water inlet of described energy-conservation organ pipe and water outlet are provided with a thermometer.
Compared with prior art, the energy-saving appliance control system that the utility model provides, in the closed-loop path, power set are sent into the water circulation in the water tank in the energy-conservation organ pipe, and then current are passed into the smoke pre-heating in the pipe in energy-conservation organ pipe, pre-thermogenetic hot water is sent back in the water tank, so that the water temperature in the water tank raises; Thereby, in path, when the height value of water level in the described drum that control device collects is lower than the preset height value, the water after the described Water in Water Tanks temperature rise is sent in the described drum.The utility model has not only been realized traditional performance of energy-saving appliance, and because the water in the energy-conservation organ pipe is in continuous flow regime, effectively avoided repeatedly being heated until produce the situation generation of steam by flue gas owing to the static of current, thereby prevented from effectively having prolonged the service life of energy-saving appliance owing to producing the break phenomenon of energy-conservation organ pipe of steam.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in below describing only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
Fig. 1 is the structural representation of energy-saving appliance control system in the background technology;
The structural representation of a kind of energy-saving appliance control system that Fig. 2 provides for the utility model embodiment one;
The result schematic diagram of the another kind of energy-saving appliance control system that Fig. 3 provides for the utility model embodiment two.
Reference numeral: 1-power set, 2-water tank, the energy-conservation organ pipe of 3-, the 4-control device, 5-drum, 101-the first water pump, 102-the first motor, 6-blowoff valve, 7-Pressure gauge, the 8-thermometer, 9-level sensor, 10-controller, 11-the second water pump, 12-the second motor, 13-vent valve, the 14-check-valves, the 15-safety valve.
The specific embodiment
Below with reference to accompanying drawing the technical scheme of each embodiment of the utility model is carried out clear, complete description, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, all belong to the scope that the utility model is protected.
Embodiment one
The utility model embodiment one provides a kind of energy-saving appliance control system, and referring to Fig. 2, the connecting line among the figure is water pipe, and particularly, this energy-saving appliance control system comprises:
Power set 1, water tank 2, energy-conservation organ pipe 3, control device 4, drum 5;
Described power set 1 are communicated with the water inlet of water tank 2 and energy-conservation organ pipe 3 respectively, and the delivery port of energy-conservation organ pipe 3 is communicated with water tank 2, and then form the closed-loop path; Described control device 4 is communicated with water tank 2 and drum 5 respectively, forms path;
Described power set 1 are used for the water with described water tank 2, send in the described energy-conservation organ pipe 3 by described closed loop cycle;
Described energy-conservation organ pipe 3 is used for adopting the smoke convection in the access tube to cross the interior water preheat of pipe, and sends pre-thermogenetic hot water back to described water tank 2, so that the water temperature in the water tank 2 raises;
Control device 4 is used for when the height value of the described drum 5 interior water levels that collect is lower than the preset height value, and the water after water temperature in the described water tank 2 is raise is sent in the described drum 5 by described path.
The energy-saving appliance control system that the utility model embodiment one provides, in the closed-loop path, power set are sent into the water circulation in the water tank in the energy-conservation organ pipe, and then current are passed into the smoke pre-heating in the pipe in energy-conservation organ pipe, pre-thermogenetic hot water is sent back in the water tank, so that the water temperature in the water tank raises; Thereby, in path, when the height value of water level in the described drum that control device collects is lower than the preset height value, the water after the described Water in Water Tanks temperature rise is sent in the described drum.The utility model has not only been realized traditional performance of energy-saving appliance, and because the water in the energy-conservation organ pipe is in continuous flow regime, effectively avoided repeatedly being heated until produce the situation generation of steam by flue gas owing to the static of current, thereby prevented from effectively having prolonged the service life of energy-saving appliance owing to producing the break phenomenon of energy-conservation organ pipe of steam.
Embodiment two
For the energy-saving appliance control system that provides among the utility model embodiment one more clearly is provided, preferably, the utility model embodiment two provides the concrete structure of this energy-saving appliance control system.Referring to Fig. 3, wherein, the connecting line between mark 101 and mark 102, between mark 10 and mark 12, mark 12 and the mark 11, other connecting lines are water pipe;
This energy-saving appliance control system comprises:
Power set 1, water tank 2, energy-conservation organ pipe 3, drum 5; Described power set 1 are communicated with the water inlet of water tank 2 and energy-conservation organ pipe 3 respectively, and the delivery port of energy-conservation organ pipe 3 is communicated with water tank 2, and then form the closed-loop path;
Particularly,
Described power set 1 are used for the water circulation of described water tank 2 is sent in the described energy-conservation organ pipe 3;
Preferably, these power set 1 comprise the first water pump 101 and are used for driving the first motor 102 of the first water pump 101 that described the first water pump 101 is as hot water circulating pump, and this first motor 102 is three phase electric machine;
The water inlet of the first water pump 101 by cross current in water tank; Water pipe place between the first water pump 101 and water tank 2 is equipped with blowoff valve 6, is used for the opening or closing of Artificial Control valve, thereby the current in the control water tank enter in the water pipe;
Wherein, this blowoff valve 6 is used for discharging the sewage in the closed-loop path when the inside of described closed-loop path is cleaned;
Particularly, blowoff valve 6 is opened, exerted pressure by the water inlet in the closed-loop path, to the cleaning of pressurizeing of the inside of closed-loop path, and sewage discharged by blowoff valve 6;
Described energy-conservation organ pipe 3 is used for adopting the smoke convection in the access tube to cross the interior water preheat of pipe, and sends pre-thermogenetic hot water back to described water tank 2, so that the water temperature in the water tank 2 raises;
This energy-conservation organ pipe 3 is the crooked cast-iron pipe that distributes;
The delivery port of the water inlet of this energy-conservation organ pipe 3 and the first water pump 101 passes through cross current, and the water pipe place between the delivery port of the water inlet of this energy-conservation organ pipe 3 and the first water pump 101 is equipped with blowoff valve 8, be used for equally when the inside of closed-loop path being carried out the blowdown cleaning, by this blowoff valve effluent sewerage; That is to say, be provided with blowoff valve between the water inlet of described power set and energy-conservation organ pipe; Water pipe place between the water inlet of this blowoff valve 6 and energy-conservation organ pipe 3 also is equipped with Pressure gauge 7 and thermometer 8, this Pressure gauge is for the air pressure of the water inlet of measuring energy-conservation organ pipe, and thermometer is used for measuring the temperature of current before entering the water inlet of energy-conservation organ pipe;
The delivery port of energy-conservation organ pipe 3 is communicated with water pipe, and this cross current is to drum 5; And, water outlet near energy-conservation organ pipe 3 also is equipped with thermometer 8, this thermometer be used for to be measured the temperature through the current after the energy-conservation organ pipe preheating, thereby the water temperature that can measure respectively according to two thermometers is done an assessment to the pre-hot property of this energy-conservation organ pipe;
Further, near the water tank place blowoff valve 6 is being installed, same being used for when the inside of closed-loop path being carried out the blowdown cleaning, by this blowoff valve effluent sewerage;
Like this, water tank, power set, some water pipes and energy-saving appliance pipe form the closed-loop path, and current circulate in this closed-loop path, so that the temperature of Water in Water Tanks raises gradually;
In the above-mentioned closed-loop path, because the water in the energy-conservation organ pipe is in continuous flow regime, effectively avoided repeatedly being heated until produce the situation generation of steam by flue gas owing to the static of current, thereby prevented from effectively having prolonged the service life of energy-saving appliance owing to producing the break phenomenon of energy-conservation organ pipe of steam
In order to realize traditional performance of energy-conservation organ pipe, this system further comprises some water pipes and control device 4; Wherein, this control device 4 comprises: level sensor 9, controller 10 and by the second water pump 11 be used for driving the Power Component that the second motor 12 of the second water pump 11 consists of: particularly,
Described level sensor 9 is positioned at drum 5, is used for gathering the elevation information of described drum 5 middle water levels, and sends to described controller 10;
Described controller 10 is used for starting described Power Component when the height value that the described elevation information that receives described level sensor 9 transmissions carries is lower than the preset height value, namely starts the second motor 12, and then drives 11 runnings of the second water pump;
Correspondingly, described Power Component is used under the control of described controller the water after the described Water in Water Tanks temperature rise being sent in the described drum.
The delivery port of the water inlet of this second water pump 11 by described water tank 2, the second water pumps 11 of cross current by cross current to drum 5; And at the delivery port of the second water pump 11 and the water pipe place between the drum 5 blowoff valve 6 is installed also, is used for the opening or closing of Artificial Control valve; This blowoff valve can be realized the function of valve, can when the inside of described path being carried out blowdown and clean, sewage be discharged by this blowoff valve again;
Like this, water tank 2, Power Component, some water pipes and drum 5 form paths, are used for being transmitted back to through the closed-loop path hot water of water tank, send into drum; And the mobile of current controlled by control device in this path;
Correspondingly, described control device is used for when the height value of the described drum 5 interior water levels that collect is lower than the preset height value, and the water after water temperature in the described water tank 2 is raise is sent in the described drum 5;
In order to ensure the security of energy-saving appliance, further comprise vent valve 13 in the above-mentioned closed-loop path, this vent valve is arranged on the delivery port of described energy-conservation organ pipe, is communicated with described energy-conservation organ pipe;
Described vent valve 13 is used for gathering the pressure information in the described energy-conservation organ pipe, and sends to described control device;
Described control device is further used for, and when the pressure values of carrying in the pressure information that the described vent valve that receives sends was higher than default take-off pressure values, by-pass valve control was opened; The pressure values of carrying in the pressure information that the described vent valve that receives sends is lower than when presetting back the seat pressure values, and by-pass valve control is closed;
For example, if the specified pressure of boiler is 1.25MPa, the take-off pressure that then sets in advance vent valve is that 1.1MPa, time seat pressure are 0.8MPa; When the pressure in the energy-conservation organ pipe surpassed the take-off pressure 1.1MPa of vent valve, vent valve was opened; When pressure was lower than back seat pressure 0.8MPa, vent valve is autoshutdown again;
Particularly, be provided with pressure sensor in the described vent valve 13, be used for gathering the pressure information in the described energy-conservation organ pipe.
Among the utility model embodiment two, in the closed-loop path, because the water in the energy-conservation organ pipe circulates always, the water that flows can fully absorb the temperature that passes into the flue gas in the energy-conservation organ pipe, so that the heat of flue gas is fully reclaimed maximized energy savings.
In order to prevent that above-mentioned closed-loop path from breaking down, affect the normal water circulation in the energy-saving appliance control system, this energy-saving appliance control system further comprises the first spare duct and the second spare duct;
The two ends of described the first spare duct connect respectively the water inlet of the described energy-conservation organ pipe 3 on the described closed-loop path and the water inlet of the described blowoff valve 6 on the described path;
The two ends of described the second spare duct connect respectively an end of the described vent valve 13 on the described closed-loop path and the delivery port of the described blowoff valve 6 on the described path.
And, preferably, be provided with valve on the first spare duct, be specially check-valves 14, be used for opening and damming of control the first spare duct; Also be provided with valve on the second spare duct, be specially safety valve 15, be used for opening and damming of control the second spare duct,
Like this, water tank, control device, the first spare duct, energy-conservation organ pipe, the second spare duct and drum form stand-by channel, when breaking down in the above-mentioned closed-loop path, for example the power set in the closed-loop path break down and can't work the time, can adopt above-mentioned stand-by channel realization to the preheating of current, and the hot water that produces is delivered in the drum; Further ensured the energy-saving appliance control system.
The various embodiment that the utility model provides can be as required in any way mutually combination, the technical scheme that obtains by this combination is also in scope of the present utility model.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also comprises these changes and modification interior.
Claims (10)
1. the energy-saving appliance control system is characterized in that, comprising: power set, water tank, energy-conservation organ pipe, control device, drum;
Described power set are communicated with the water inlet of water tank and energy-conservation organ pipe respectively, and the delivery port of energy-conservation organ pipe is communicated with water tank, and then form the closed-loop path; Described control device is communicated with water tank and drum respectively, forms path;
Described power set are used for the water with described water tank, send in the described energy-conservation organ pipe by described closed loop cycle;
Described energy-conservation organ pipe is used for adopting the smoke convection in the access tube to cross the interior water preheat of pipe, and sends pre-thermogenetic hot water back to described water tank, so that the water temperature in the water tank raises;
Described control device when being used for that the height value of water level is lower than the preset height value in the described drum that collects, with the water after the described Water in Water Tanks temperature rise, is sent in the described drum by described path.
2. energy-saving appliance control system as claimed in claim 1 is characterized in that, further comprises vent valve, and this vent valve is arranged on the delivery port of described energy-conservation organ pipe, is communicated with described energy-conservation organ pipe;
Described vent valve is used for gathering the pressure information in the described energy-conservation organ pipe, and sends to described control device;
Described control device is further used for, when the pressure values of carrying in the pressure information that the described vent valve that receives sends is higher than default take-off pressure values, and the valve open of control vent valve; The pressure values of carrying in the pressure information that the described vent valve that receives sends is lower than when presetting back the seat pressure values, the valve closing of control vent valve.
3. energy-saving appliance control system as claimed in claim 2 is characterized in that, is provided with pressure sensor in the described vent valve, is used for gathering the pressure information in the described energy-conservation organ pipe.
4. energy-saving appliance control system as claimed in claim 1, it is characterized in that, further be provided with blowoff valve between the water inlet of described power set and described energy-conservation organ pipe, be used for when the inside of described closed-loop path is cleaned, discharging the sewage in the closed-loop path.
5. energy-saving appliance control system as claimed in claim 2 is characterized in that, further is provided with blowoff valve between described control device and the described drum, is used for when the inside of described path is cleaned the sewage in the drain passageway.
6. energy-saving appliance control system as claimed in claim 5 is characterized in that, further comprises the first spare duct and the second spare duct;
The two ends of described the first spare duct connect respectively the water inlet of the described energy-conservation organ pipe on the described closed-loop path and the water inlet of the described blowoff valve on the described path;
The two ends of described the second spare duct connect respectively an end of the described vent valve on the described closed-loop path and the delivery port of the described blowoff valve on the described path.
7. such as the described energy-saving appliance control system of claim 1-6 any one, it is characterized in that described power set comprise the first water pump and are used for driving the first motor of described the first water pump.
8. energy-saving appliance control system as claimed in claim 7 is characterized in that, described the first motor is three phase electric machine.
9. energy-saving appliance control system as claimed in claim 7 is characterized in that, described control device comprises: level sensor, controller and Power Component:
Described level sensor is installed in the described drum, is used for gathering the elevation information of described drum middle water level, and sends to described controller;
Described controller is connected with described Power Component, is used for starting described Power Component when the height value that the described elevation information that receives described level sensor transmission carries is lower than the preset height value;
Described Power Component is used under the control of described controller the water after the described Water in Water Tanks temperature rise being sent in the described drum.
10. energy-saving appliance control system as claimed in claim 1 is characterized in that, the water inlet of described energy-conservation organ pipe and water outlet are provided with a thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492590 CN202791974U (en) | 2012-09-21 | 2012-09-21 | Energy-saving device control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492590 CN202791974U (en) | 2012-09-21 | 2012-09-21 | Energy-saving device control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202791974U true CN202791974U (en) | 2013-03-13 |
Family
ID=47819230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220492590 Expired - Fee Related CN202791974U (en) | 2012-09-21 | 2012-09-21 | Energy-saving device control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202791974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853421A (en) * | 2012-09-21 | 2013-01-02 | 罗泽云 | Energy economizer control system and method |
-
2012
- 2012-09-21 CN CN 201220492590 patent/CN202791974U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853421A (en) * | 2012-09-21 | 2013-01-02 | 罗泽云 | Energy economizer control system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201074826Y (en) | Flue gas/oil-fired boiler energy conservation equipment | |
| CN201184680Y (en) | Gas water heater | |
| CN105066447A (en) | Electromagnetic heating boiler system | |
| CN202647714U (en) | Boiler economizer system | |
| CN202791974U (en) | Energy-saving device control system | |
| CN205744026U (en) | Exhaust steam of electric power plant heating Living Water and softening water heat supply water charging system | |
| CN204880724U (en) | Electromagnetic heating boiler system | |
| CN203771666U (en) | Water heater | |
| CN102721166A (en) | Electromagnetic heating system | |
| CN104165537A (en) | Reheating type water bath furnace | |
| CN202952416U (en) | Conduction oil heat supplying system of open mill | |
| CN103994492B (en) | Hot water supply system with solar energy and wall-hung stove linked and intelligent control method | |
| CN102419007A (en) | Energy-saving electric water heater | |
| CN102853421A (en) | Energy economizer control system and method | |
| CN207065868U (en) | A kind of electric heater with filter | |
| CN208936524U (en) | A kind of energy-saving methanol boiler | |
| CN205783749U (en) | A kind of three backhaul water heaters in terms of hot-water boiler | |
| CN205424882U (en) | Double -furnace courage steam generator | |
| CN204880749U (en) | A electromagnetic heating device that is used for pipeline machine boiler | |
| CN205299943U (en) | Coal -fired conduction oil boiler | |
| CN204630029U (en) | A kind of continuous heat supply homogeneous solution-type reactor being convenient to scale removal | |
| CN215982495U (en) | Automatic feeding descaling system | |
| CN216937720U (en) | Hot mill emulsion heating system utilizing waste heat of push type heating soaking pit furnace | |
| CN204388185U (en) | A kind of domestic type secondary heat exchange unit | |
| CN203994375U (en) | A kind of energy-saving environment protection intelligent type evaporating pressure container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20180921 |