CN205025541U - Diesel engine's waste heat recovery device - Google Patents
Diesel engine's waste heat recovery device Download PDFInfo
- Publication number
- CN205025541U CN205025541U CN201520797762.9U CN201520797762U CN205025541U CN 205025541 U CN205025541 U CN 205025541U CN 201520797762 U CN201520797762 U CN 201520797762U CN 205025541 U CN205025541 U CN 205025541U
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- heat exchanger
- diesel engine
- shell
- spray
- tail gas
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- 238000011084 recovery Methods 0.000 title claims abstract description 35
- 239000002918 waste heat Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 120
- 239000007921 spray Substances 0.000 claims abstract description 70
- 238000005507 spraying Methods 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 51
- 239000010865 sewage Substances 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000008236 heating water Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides a diesel engine's waste heat recovery device, include shell and tube type heat exchanger, plate heat exchanger, spray water tank, sprayed circulation water pump, solenoid valve, controller, wherein, outside diesel engine, solenoid valve, sprayed circulation water pump are connected to the controller, and outside diesel engine still connects shell and tube type heat exchanger, and the solenoid valve is connected to the sprayed circulation water pump, and shell and tube type heat exchanger connects solenoid valve, plate heat exchanger, sprays the water tank, and plate heat exchanger and spraying also is linked together between the water tank. The utility model has the characteristics of environmental protection, energy saving etc, but wide application in exploitation trades such as oil.
Description
Technical Field
The utility model relates to a waste heat recovery technology especially relates to a diesel engine's waste heat recovery device.
Background
At present, in construction sites such as drilling, drilling and piling, because the drilling rig moves for operation and is far away from a power supply lamp of a power grid, electric energy used by the drilling rig is required to be provided by a generator which is usually driven by a diesel engine. In the process of generating electricity by driving a generator by a diesel engine, the heat energy generated by the combustion of diesel oil is not completely converted into mechanical energy, the temperature of the gas exhausted after the work is done is more than 200 ℃, and the heat of the gas is about 5 percent of the heat value of the consumed diesel oil in the same time. It follows that this energy loss is still relatively large if the exhaust gases from the diesel engine are not fully utilized. Meanwhile, domestic hot water is required to be prepared by other heating equipment on a construction site; furthermore, hot water is also used to thaw the rock around the borehole at the construction site in winter.
Therefore, in the prior art, the diesel engine has the problems of energy waste and the like in the use process.
Disclosure of Invention
In view of this, the main object of the present invention is to provide a waste heat recovery device for a diesel engine capable of saving energy.
In order to achieve the above object, the utility model provides a technical scheme does:
a waste heat recovery device of a diesel engine, comprising: a shell-and-tube heat exchanger (31), a plate heat exchanger (32), a spray water tank (33), a spray circulating water pump (34), an electromagnetic valve (35) and a controller (N); wherein,
the shell-and-tube heat exchanger (31) is used for exchanging heat between high-temperature tail gas generated by a diesel engine (1) driving the generator and preheated water from the plate heat exchanger (32), and spraying water provided by a spraying water tank (33) is used for absorbing chemical impurities in the tail gas of the diesel engine in a spraying mode; and discharging the low-temperature tail gas and the heated water obtained after heat exchange to the outside of a waste heat recovery device of the diesel engine, and sending the high-temperature sewage obtained after spraying to a plate heat exchanger (32).
And the plate type heat exchanger (32) is used for exchanging heat between high-temperature sewage from the shell-and-tube type heat exchanger (31) and heated water required to be heated from the outside of the waste heat recovery device of the diesel engine, sending the obtained preheated water to the shell-and-tube type heat exchanger (31), and sending the obtained low-temperature sewage to the spray water tank (33).
And the spray water tank (33) is used for providing spray water for the shell-and-tube heat exchanger (31) and receiving low-temperature sewage from the plate heat exchanger (32).
The spray circulating water pump (34) is used for conveying spray water from the spray water tank (33) to the shell-and-tube heat exchanger (31) through the electromagnetic valve (35) according to an operation instruction sent by the controller (N); and stopping the operation according to the operation stopping command sent by the controller (N).
And the electromagnetic valve (35) is used for opening and closing correspondingly according to the opening command and the closing command sent by the controller (N).
The controller (N) is used for sequentially sending an opening instruction to the electromagnetic valve (5) and sending an operation instruction to the spraying circulating water pump (34) after counting for 10 seconds when the ignition and normal operation of the diesel engine (1) are detected; when the diesel engine (1) is detected to stop running and extinguish the fire for 10 seconds, a closing instruction is sent to the electromagnetic valve (5), and a running stopping instruction is sent to the spraying circulating water pump (34).
A first output end of the external diesel engine (1) is connected with a first input end of the controller (N), and a second output end of the external diesel engine (1) is connected with a high-temperature tail gas inlet end of the shell-and-tube heat exchanger (31); the first output end of the controller (N) is connected with the control end of the electromagnetic valve (35), and the second output end of the controller (N) is connected with the control end of the spray circulating water pump (34); one end of a spray circulating water pump (34) is connected with a first output end of the spray water tank (33), the other end of the spray circulating water pump (34) is connected with one end of an electromagnetic valve (35), and the other end of the electromagnetic valve (35) is connected with a spray water inlet end of the shell-and-tube heat exchanger (31); the low-temperature tail gas exhaust end of the shell type heat exchanger (31) is directly communicated with the outside of the waste heat recovery device of the diesel engine, the high-temperature sewage water outlet end of the shell type heat exchanger (31) is connected with the second input end of the plate type heat exchanger (32), the preheating water inlet end of the shell type heat exchanger (31) is connected with the first output end of the plate type heat exchanger (32), and the heated water outlet end of the shell type heat exchanger (31) is connected to the outside of the waste heat recovery device of the diesel engine; a first input end of the plate type heat exchanger (32) is connected to a water inlet pipe needing heating outside the waste heat recovery device of the diesel engine, and a second output end of the plate type heat exchanger (32) is communicated with an input end of the spray water tank (33).
To sum up, in diesel engine's waste heat recovery device, the controller detects diesel engine and ignites and normal operating back, controls the solenoid valve in proper order and opens, spray circulating water pump operation. The water to be heated exchanges heat with the high-temperature sewage from the shell-and-tube heat exchanger in the plate heat exchanger to obtain preheated water. High-temperature tail gas generated by the diesel engine and preheated water exchange heat in a shell-and-tube exchanger to obtain heated water and output the heated water; meanwhile, in the shell-and-tube exchanger, after spray water from the spray water tank absorbs chemical substances in high-temperature tail gas, the obtained high-temperature sewage enters the plate heat exchanger to participate in heating exchange, and the low-temperature tail gas obtained after heat exchange can be ensured to contain the chemical substances as little as possible. Therefore, the waste heat recovery device of the diesel engine can make the heat carried in the high-temperature tail gas fully utilized, and can reduce the pollution to the environment to a greater extent.
Drawings
Fig. 1 is a schematic diagram of the structure of the waste heat recovery device of the diesel engine.
Fig. 2 is the structure schematic diagram of the shell-and-tube heat exchanger of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of the structure of the waste heat recovery device of the diesel engine. As shown in FIG. 1, the waste heat recovery device of diesel engine comprises: a shell-and-tube heat exchanger 31, a plate heat exchanger 32, a spray water tank 33, a spray circulating water pump 34, an electromagnetic valve 35 and a controller N; wherein,
the shell-and-tube heat exchanger 31 is used for exchanging heat between high-temperature tail gas generated by the diesel engine 1 driving the generator and preheated water from the plate heat exchanger 32, and spraying water provided by the spraying water tank 33 is used for absorbing chemical impurities in the tail gas of the diesel engine in a spraying mode; and discharging the low-temperature tail gas and the heated water obtained after heat exchange to the outside of the waste heat recovery device of the diesel engine, and sending the high-temperature sewage obtained after spraying to the plate heat exchanger 32.
And the plate type heat exchanger 32 is used for exchanging heat between the high-temperature sewage from the shell-and-tube type heat exchanger 31 and heated water to be heated from the outside of the waste heat recovery device of the diesel engine, sending the obtained preheated water to the shell-and-tube type heat exchanger 31, and sending the obtained low-temperature sewage to the spray water tank 33.
And a spray water tank 33 for supplying spray water to the shell-and-tube heat exchanger 31 and receiving low-temperature sewage from the plate heat exchanger 32.
The spray circulating water pump 34 is used for conveying spray water from the spray water tank 33 to the shell-and-tube heat exchanger 31 through the electromagnetic valve 35 according to an operation instruction sent by the controller N; and stopping the operation according to the operation stopping command sent by the controller N.
And the electromagnetic valve 35 is used for correspondingly opening and closing according to an opening instruction and a closing instruction sent by the controller N.
The controller N is used for sequentially sending an opening instruction to the electromagnetic valve 5 and sending an operation instruction to the spray circulating water pump 34 after counting for 10 seconds when detecting that the diesel engine 1 is ignited and normally operates; when the diesel engine 1 is detected to stop running and extinguish the fire for 10 seconds, a closing instruction is sent to the electromagnetic valve 5, and an operation stopping instruction is sent to the spray circulating water pump 34.
A first output end of the external diesel engine 1 is connected with a first input end of the controller N, and a second output end of the external diesel engine 1 is connected with a high-temperature tail gas inlet end of the shell-and-tube heat exchanger 31; the first output end of the controller N is connected with the control end of the electromagnetic valve 35, and the second output end of the controller N is connected with the control end of the spray circulating water pump 34; one end of the spray circulating water pump 34 is connected with a first output end of the spray water tank 33, the other end of the spray circulating water pump 34 is connected with one end of an electromagnetic valve 35, and the other end of the electromagnetic valve 35 is connected with a spray water inlet end of the shell-and-tube heat exchanger 31; the low-temperature tail gas exhaust end of the shell type heat exchanger 31 is directly communicated with the outside of the waste heat recovery device of the diesel engine, the high-temperature sewage water outlet end of the shell type heat exchanger 31 is connected with the second input end of the plate type heat exchanger 32, the preheated water inlet end of the shell type heat exchanger 31 is connected with the first output end of the plate type heat exchanger 32, and the heated water outlet end of the shell type heat exchanger 31 is connected with the outside of the waste heat recovery device of the diesel; a first input end of the plate type heat exchanger 32 is connected to a water inlet pipe needing heating outside the waste heat recovery device of the diesel engine, and a second output end of the plate type heat exchanger 32 is communicated with an input end of the spray water tank 33.
In a word, in diesel engine's waste heat recovery device, the controller detects diesel engine and ignites and the normal operating back, controls the solenoid valve in proper order and opens, spray circulating water pump operation. The water to be heated exchanges heat with the high-temperature sewage from the shell-and-tube heat exchanger in the plate heat exchanger to obtain preheated water. High-temperature tail gas generated by the diesel engine and preheated water exchange heat in a shell-and-tube exchanger to obtain heated water and output the heated water; meanwhile, in the shell-and-tube exchanger, after spray water from the spray water tank absorbs chemical substances in high-temperature tail gas, the obtained high-temperature sewage enters the plate heat exchanger to participate in heating exchange, and the low-temperature tail gas obtained after heat exchange can be ensured to contain the chemical substances as little as possible. Therefore, the waste heat recovery device of the diesel engine can make the heat carried in the high-temperature tail gas fully utilized, and can reduce the pollution to the environment to a greater extent.
The utility model discloses in, plate heat exchanger 32 is detachable. Since the high-temperature contaminated water flows through the plate heat exchanger 32, there is a deposition of dirt in the heat transfer plates of the plate heat exchanger 32. The plate heat exchanger 32 is designed to be detachable, which facilitates cleaning of the plate heat exchanger 32.
The utility model discloses in, spray tank 33 bottom is provided with the blowoff valve. Most chemical impurities in the high-temperature tail gas are absorbed by the spray water, and during the stop operation of the diesel engine, a blow-down valve at the bottom of the spray water tank 33 can be opened to discharge low-temperature sewage to a specified place.
Fig. 2 is the structure schematic diagram of the shell-and-tube heat exchanger of the present invention. As shown in fig. 2, the shell-and-tube heat exchanger 31 of the present invention includes: a high-temperature sewage outlet pipe 311, a right end socket 316, a left end socket 318, a heat exchange pipe 313, a split-range partition 312, a baffle 314, a spray header 315, a high-temperature tail gas inlet pipe 317, a nozzle 319 and a heat exchanger pipe wall 310; wherein,
the heat exchanger comprises a heat exchanger tube wall 310, a right end enclosure 316 and a left end enclosure 318, wherein a main frame of the shell-and-tube heat exchanger 31 is formed by the heat exchanger tube wall 310, the right end enclosure 316 and the left end enclosure 318, an L-shaped spray header 315 is arranged above the inner part of the main frame, one end of the spray header 315 is upwards arranged outside the heat exchanger tube wall 310 and close to the left end enclosure 318 as a spray header water inlet end of the shell-and-tube heat exchanger 31, the other end of the spray header 315 is closed and arranged close to the right end enclosure 316, more than three nozzles 319 are; a low-temperature tail gas discharge pipe 3111 is arranged upward on the pipe wall 310 of the heat exchanger close to the right end enclosure 316, one end of the low-temperature tail gas discharge pipe 3111 is communicated with the inside of the main frame, and the other end of the low-temperature tail gas discharge pipe 3111 is used as a low-temperature tail gas exhaust end and is directly communicated with the outside of the waste heat recovery device of the diesel engine; 2n heat exchange tubes 313 are arranged in the main frame and below the spray header 315, and baffle plates 314 are arranged among the heat exchange tubes 313; a split-range partition plate 312 is arranged inside the right end enclosure 316, and a pre-heating water inlet end 3113 and a heated water outlet end 3112 are also arranged on the right end enclosure 316; a high-temperature sewage water outlet end 311 is arranged at the bottom end of the heat exchanger pipe wall 310 close to the right end enclosure 316, a high-temperature tail gas inlet pipe 317 is arranged at the lower part of the heat exchanger pipe wall 310 close to the left end enclosure 318, one end of the high-temperature tail gas inlet pipe 317 is communicated with the inside of the main frame, and the other end of the high-temperature tail gas inlet pipe 317 is used as a high-temperature tail; wherein n is a natural number.
The utility model discloses in, high temperature tail gas intake pipe 317 is the decurrent elbow structure of air inlet. This can prevent the high-temperature shower water in the shell-and-tube heat exchanger 31 from flowing out from the high-temperature exhaust gas inlet pipe 317.
The utility model discloses in, be provided with in right head 316 inside and divide journey baffle 312, be in order to make preheating water through longer stroke in the heat exchange tube to fully absorb the heat that diesel engine tail gas carried, promptly, preheating water loops through n and restraints the inside that heat exchange tube 313 got into left head 318, from other n and restraints heat exchange tube 313 outflow.
The utility model discloses in, because contain the chemical impurity that can dissolve in the high temperature tail gas, also can be utilized by absorption as much as possible in order to make the heat that high temperature tail gas carried simultaneously, set up spray header 315, nozzle 319 in shell and tube heat exchanger 31.
The utility model discloses in, in order to make high temperature tail gas can fully carry out heat exchange with the inside water of preheating of heat exchange tube 313, install baffling board 314 between each bundle of heat exchange tube 313, can guarantee simultaneously that high temperature tail gas can flow along the flow direction of artificial setting.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The waste heat recovery device of the diesel engine is characterized by comprising a shell-and-tube heat exchanger (31), a plate heat exchanger (32), a spray water tank (33), a spray circulating water pump (34), an electromagnetic valve (35) and a controller (N); wherein,
the shell-and-tube heat exchanger (31) is used for exchanging heat between high-temperature tail gas generated by a diesel engine (1) driving the generator and preheated water from the plate heat exchanger (32), and spraying water provided by a spraying water tank (33) is used for absorbing chemical impurities in the tail gas of the diesel engine in a spraying mode; discharging the low-temperature tail gas and heated water obtained after heat exchange to the outside of a waste heat recovery device of the diesel engine, and sending high-temperature sewage obtained after spraying to a plate heat exchanger (32);
the plate type heat exchanger (32) is used for exchanging heat between high-temperature sewage from the shell-and-tube heat exchanger (31) and heated water to be heated from the outside of the waste heat recovery device of the diesel engine, sending the obtained preheated water to the shell-and-tube heat exchanger (31), and sending the obtained low-temperature sewage to the spray water tank (33);
the spray water tank (33) is used for providing spray water for the shell-and-tube heat exchanger (31) and receiving low-temperature sewage from the plate heat exchanger (32);
the spray circulating water pump (34) is used for conveying spray water from the spray water tank (33) to the shell-and-tube heat exchanger (31) through the electromagnetic valve (35) according to an operation instruction sent by the controller (N); stopping working according to a stop operation instruction sent by the controller (N);
the electromagnetic valve (35) is used for correspondingly opening and closing according to an opening instruction and a closing instruction sent by the controller (N);
the controller (N) is used for sequentially sending an opening instruction to the electromagnetic valve (5) and sending an operation instruction to the spraying circulating water pump (34) after counting for 10 seconds when the ignition and normal operation of the diesel engine (1) are detected; when the diesel engine (1) is detected to stop running and extinguish the fire for 10 seconds, sending a closing instruction to the electromagnetic valve (5) and sending a running stopping instruction to the spraying circulating water pump (34);
a first output end of the external diesel engine (1) is connected with a first input end of the controller (N), and a second output end of the external diesel engine (1) is connected with a high-temperature tail gas inlet end of the shell-and-tube heat exchanger (31); the first output end of the controller (N) is connected with the control end of the electromagnetic valve (35), and the second output end of the controller (N) is connected with the control end of the spray circulating water pump (34); one end of a spray circulating water pump (34) is connected with a first output end of the spray water tank (33), the other end of the spray circulating water pump (34) is connected with one end of an electromagnetic valve (35), and the other end of the electromagnetic valve (35) is connected with a spray water inlet end of the shell-and-tube heat exchanger (31); the low-temperature tail gas exhaust end of the shell-and-tube heat exchanger (31) is directly communicated with the outside of the waste heat recovery device of the diesel engine, the high-temperature sewage water outlet end of the shell-and-tube heat exchanger (31) is connected with the second input end of the plate heat exchanger (32), the preheating water inlet end of the shell-and-tube heat exchanger (31) is connected with the first output end of the plate heat exchanger (32), and the heated water outlet end of the shell-and-tube heat exchanger (31) is connected to the outside of; a first input end of the plate type heat exchanger (32) is connected to a water inlet pipe needing heating outside the waste heat recovery device of the diesel engine, and a second output end of the plate type heat exchanger (32) is communicated with an input end of the spray water tank (33).
2. The waste heat recovery device of the diesel engine according to claim 1, wherein the shell-and-tube heat exchanger (31) comprises a high-temperature sewage outlet pipe (311), a right end socket (316), a left end socket (318), a heat exchange pipe (313), a split-range partition plate (312), a baffle plate (314), a spray header (315), a high-temperature tail gas inlet pipe (317), a nozzle (319) and a heat exchanger pipe wall (310); wherein,
the heat exchanger is characterized in that a main frame of the shell-and-tube heat exchanger (31) is formed by a heat exchanger tube wall (310), a right end enclosure (316) and a left end enclosure (318), an L-shaped spray water pipe (315) is arranged above the inner part of the main frame, one end of the spray water pipe (315) is upwards arranged at the side, close to the left end enclosure (318), of the outer part of the heat exchanger tube wall (310) as a spray water inlet end of the shell-and-tube heat exchanger (31), the other end of the spray water pipe (315) is closed and arranged at the side, close to the right end enclosure (316), more than three nozzles (319) are arranged on the spray water pipe; a low-temperature tail gas discharge pipe (3111) is arranged on the pipe wall (310) of the heat exchanger close to the right end enclosure (316) upwards, one end of the low-temperature tail gas discharge pipe (3111) is communicated with the inside of the main frame, and the other end of the low-temperature tail gas discharge pipe (3111) is used as a low-temperature tail gas exhaust end and is directly communicated with the outside of the waste heat recovery device of the diesel engine; 2n heat exchange tubes (313) are arranged in the main frame and below the spray header (315), and baffle plates (314) are arranged among the heat exchange tubes (313); a split-range partition plate (312) is arranged in the right sealing head (316), and a pre-heating water inlet end (3113) and a heated water outlet end (3112) are also arranged on the right sealing head (316); a high-temperature sewage water outlet end (311) is arranged at the bottom end of the heat exchanger pipe wall (310) close to the right end enclosure (316), a high-temperature tail gas inlet pipe (317) is arranged at the lower part of the heat exchanger pipe wall (310) close to the left end enclosure (318), one end of the high-temperature tail gas inlet pipe (317) is communicated with the inside of the main frame, and the other end of the high-temperature tail gas inlet pipe (317) is used as a high-temperature tail; wherein n is a natural number.
3. The waste heat recovery device of the diesel engine according to claim 2, wherein the high temperature exhaust gas inlet pipe (317) is a bent pipe structure with a downward air inlet.
4. The waste heat recovery device of a diesel engine according to claim 1, characterized in that the plate heat exchanger (32) is detachable.
5. The waste heat recovery device of the diesel engine according to claim 1, wherein a blowoff valve is provided at the bottom of the spray water tank (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520797762.9U CN205025541U (en) | 2015-10-15 | 2015-10-15 | Diesel engine's waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520797762.9U CN205025541U (en) | 2015-10-15 | 2015-10-15 | Diesel engine's waste heat recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN205025541U true CN205025541U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520797762.9U Active CN205025541U (en) | 2015-10-15 | 2015-10-15 | Diesel engine's waste heat recovery device |
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| CN (1) | CN205025541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107648966A (en) * | 2017-08-17 | 2018-02-02 | 浙江绿环工程机械有限公司 | One kind printing and dyeing gas processing device |
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2015
- 2015-10-15 CN CN201520797762.9U patent/CN205025541U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107648966A (en) * | 2017-08-17 | 2018-02-02 | 浙江绿环工程机械有限公司 | One kind printing and dyeing gas processing device |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20180912 Address after: 100068 1909, 16 floor, 3 building, 16 South Sanhuan Road, Fengtai District, Beijing. Patentee after: Zhongjian ring Energy Construction Engineering Co., Ltd. Address before: 100078 2503, 1 South Road, Fengtai District, Beijing 1, 2503 Patentee before: BEIJING HUANYUHUITONG ENERGY TECHNOLOGY CO., LTD. |
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| TR01 | Transfer of patent right |