CN211781956U - Static evaporation type coil heat exchanger structure of waste water heat recovery unit - Google Patents
Static evaporation type coil heat exchanger structure of waste water heat recovery unit Download PDFInfo
- Publication number
- CN211781956U CN211781956U CN201922311642.4U CN201922311642U CN211781956U CN 211781956 U CN211781956 U CN 211781956U CN 201922311642 U CN201922311642 U CN 201922311642U CN 211781956 U CN211781956 U CN 211781956U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- wastewater
- waste water
- type coil
- evaporation type
- 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
- 239000002351 wastewater Substances 0.000 title claims abstract description 148
- 230000008020 evaporation Effects 0.000 title claims abstract description 59
- 238000001704 evaporation Methods 0.000 title claims abstract description 59
- 230000003068 static effect Effects 0.000 title claims abstract description 54
- 238000011084 recovery Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000010949 copper Substances 0.000 claims abstract description 17
- 229910052802 copper Inorganic materials 0.000 claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000003287 bathing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 208000001840 Dandruff Diseases 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011981 development test Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a static evaporation type coil heat exchanger structure of a waste water heat recovery unit, which comprises a static evaporation type coil heat exchanger, wherein the static evaporation type coil heat exchanger is arranged in a waste water pool, one side of the waste water pool is provided with a waste water inlet, the other side of the waste water pool is provided with a waste water outlet, the waste water inlet is connected with a drainage pipeline, the drainage pipeline is connected with a water point waste water discharge port for hot water in a bathroom, the static evaporation type coil heat exchanger is connected with the waste water heat recovery heat pump unit through a copper pipe, the copper pipe connected with the static evaporation type coil heat exchanger is provided with a heat pump air pipe stop valve and a heat pump liquid pipe stop valve, the waste water heat recovery heat pump unit is connected with a hot water heat preservation water tank, the static evaporation type coil heat exchanger structure can, the cold water has high specific gravity, so that hot water in the waste water tank floats upwards and cold water sinks, and the water outlet pipe extends into the bottom of the waste water tank to discharge the waste cold water.
Description
Technical Field
The utility model relates to an used heat utilization technology field, concretely relates to waste water heat recovery unit's static evaporation type coil pipe heat exchanger structure.
Background
At present, the recycling of bathing waste water heat is realized through water source heat pump waste water heat recovery system, and its system theory of operation is that after equipment such as hair filter, husky jar filter are taken out waste water through sewage immersible pump and are filtered, reach water source heat pump set heat exchanger again, waste water heat is discharged after being absorbed, but this kind of water source heat pump waste water heat recovery system has following shortcoming: 1. additional equipment such as a sewage submersible pump, a hair filter, a sand cylinder filter and the like are required to be added for lifting and filtering the sewage, the installation is complex, the capital of the additional equipment and the operating electric charge investment of the water pump are increased, and the installation site of the additional equipment is increased; 2. a wastewater pool water level control device is required to be added to prevent the sewage submersible pump from running in a water shortage manner; 3. a water flow detection switch at the side of the evaporator is required to be added, so that insufficient water flow caused by blockage of a hair filter, a sand cylinder filter, a pipeline and the like or water flow interruption caused by sudden damage and stop of a sewage pump is prevented, and therefore, a heat exchange tube in the evaporator is frozen and cracked due to water shortage in the evaporator, even water enters a fluorine path system, and a water source heat pump unit is scrapped; 4. the method is characterized in that a special staff is required to be added to periodically clean a hair filter, a sand jar filter and a water source heat pump evaporator, the frequency of periodic cleaning is determined according to the amount of filtered waste water and the content of pollutants (secretion of human bodies, grease scurf, hair, a large amount of soap and shampoo) in the waste water, even the cleaning is needed for once every 2-3 days, the cleaning workload is dirty and tedious, and the labor cost is wasted, and the method mainly focuses on how to effectively solve the process of quickly, energy-saving and safely realizing heat exchange of the waste water in a waste water tank, so that the problem of the waste water heat recovery and conversion and utilization process is improved by designing a static evaporation type coil pipe heat exchanger structure of a waste water heat recovery unit arranged in the waste water tank.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a waste water heat recovery unit.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a static evaporation type coil pipe heat exchanger structure among waste water heat recovery unit, includes static evaporation type coil pipe heat exchanger, static evaporation type coil pipe heat exchanger sets up in the wastewater disposal basin, wastewater disposal basin one side is equipped with the waste water inlet, and one side is equipped with the waste water delivery port in addition, the waste water inlet is connected with drainage pipe, drainage pipe is connected with the waste water discharge port of bathroom hot water consumption point, static evaporation type coil pipe heat exchanger is connected through the copper pipe with waste water heat recovery heat pump set, waste water heat recovery heat pump set with the copper pipe that static evaporation type coil pipe heat exchanger is connected is equipped with heat pump trachea stop valve and heat pump liquid pipe stop valve, waste water heat recovery heat pump.
The utility model discloses a further improvement lies in: the static evaporation type coil heat exchanger comprises n +1 branches, and electromagnetic valves are installed at inlets of the first n branches.
The utility model discloses a further improvement lies in: the waste water outlet is 30cm lower than the upper edge of the waste water pool, the waste water outlet is connected with a sewer, and the water outlet pipe extends into the waste water pool and is arranged 20cm away from the bottom of the waste water pool.
The utility model discloses a further improvement lies in: the outlet pipe is the type of falling L, outlet pipe pipeline ratio drainage pipe should 1 model at least bigger, the water inlet with the delivery port sets up two opposite faces of wastewater disposal basin.
The utility model discloses a further improvement lies in: the static evaporation type coil heat exchanger is arranged above the wastewater tank and 10cm away from the water level.
The utility model discloses a further improvement lies in: the waste water temperature sensor is arranged in the waste water pool and is arranged at a position 10cm below the static evaporation type coil heat exchanger, and the waste water temperature sensor controls a water replenishing signal port of the waste water pool in the unit to output water to the underground water submersible pump.
The utility model discloses a further improvement lies in: the upper end of the wastewater pond is provided with a wastewater pond top cover, and the wastewater pond top cover is provided with an access hole.
The utility model discloses a further improvement lies in: one end of the static evaporation type coil heat exchanger is connected with the heat pump air pipe stop valve through a copper pipe, and the other end of the static evaporation type coil heat exchanger is connected with the heat pump liquid pipe stop valve through the copper pipe.
Has the advantages that:
1. the static evaporation type coil heat exchanger is arranged on the upper part of the wastewater pool, so that evaporation and heat absorption can be realized, the installation is convenient and fast, the occupied area is small, the electricity charge generated by redundant equipment can be saved, and some potential safety hazards can be avoided;
2. the height difference of horizontal pipes of a water inlet and a water outlet of the wastewater pool is utilized, the water outlet is 30cm lower than the water inlet, a water outlet pipe extends into the wastewater pool and is 20cm away from the bottom of the wastewater pool, a unit static evaporation type coil pipe heat exchanger is arranged at the upper part of the wastewater pool and is 10cm lower than the water outlet, the temperature of wastewater can be fully absorbed, hot water in the wastewater pool floats upwards and sinks cold water due to small specific gravity and large specific gravity of cold water, the water outlet pipe extends into the bottom of the wastewater pool and can discharge the cold water, and the water;
3. the control circuit in the unit is provided with a wastewater temperature sensor and is placed at the position of 10cm below the static evaporation type coil heat exchanger during installation, meanwhile, a wastewater pool water supplement signal port is reserved in the control circuit in the unit, when the temperature of water in the wastewater pool is reduced to be very low, wastewater is not supplemented in a bathroom bathing area, the temperature and the water level of the hot water heat-preservation water tank do not meet shutdown conditions, and at the moment, the following logic control is required to ensure that the heat pump unit can normally run;
4. the cleaning and maintenance are simple, the top cover of the wastewater tank is opened, and the coil pipe heat exchanger is directly washed by using a tap water gun.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1-static evaporation type coil heat exchanger, 2-wastewater pool, 3-wastewater inlet, 4-wastewater outlet, 5-drainage pipeline, 6-wastewater outlet, 7-wastewater heat recovery heat pump unit, 8-copper pipe, 9-heat pump air pipe stop valve, 10-heat pump liquid pipe stop valve, 11-hot water heat preservation water tank, 12-water outlet pipe, 13-wastewater temperature sensor, 14-underground water submersible pump, 15-wastewater pool top cover, and 16-maintenance port.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
A static evaporation type coil heat exchanger structure in a waste water heat recovery unit comprises a static evaporation type coil heat exchanger 1, wherein the static evaporation type coil heat exchanger 1 is arranged in a waste water pool 2, one side of the waste water pool 2 is provided with a waste water inlet 3, the other side of the waste water pool 2 is provided with a waste water outlet 4, the waste water inlet 3 is connected with a drainage pipeline 5, the drainage pipeline 5 is connected with a waste water outlet 6 of a water using point of hot water in a bathroom, the static evaporation type coil heat exchanger 1 is connected with a waste water heat recovery heat pump unit 7 through a copper pipe 8, a copper pipe 8 connecting the waste water heat recovery heat pump unit 7 with the static evaporation type coil heat exchanger 1 is provided with a heat pump air pipe stop valve 9 and a heat pump liquid pipe stop valve 10, the waste water heat recovery heat pump unit 7 is connected with a hot water heat preservation, solenoid valves are arranged at the front n shunt inlets.
The device is characterized in that the wastewater outlet 3 is 30cm lower than the upper edge of the wastewater pool 1, the wastewater outlet 3 is connected with a sewer, a water outlet pipe extends into the wastewater pool 1 and is arranged 20cm away from the bottom of the wastewater pool 1, the water outlet pipe 12 is of an inverted L shape, the pipe diameter of the water outlet pipe 12 is 1 model larger than that of a drainage pipe, the water inlet 3 and the water outlet 4 are arranged on two opposite surfaces of the wastewater pool 1, the static evaporation type coil heat exchanger 1 is arranged above the wastewater pool 1 and 10cm away from the water level, a wastewater temperature sensor 13 is arranged in the wastewater pool 1, the wastewater temperature sensor 13 is arranged 10cm below the static evaporation type coil heat exchanger 1, the wastewater temperature sensor 13 controls a water replenishing signal port of the wastewater pool in the unit to output to a submersible pump 14, and a wastewater pool top cover 15 is arranged at the upper end of the wastewater pool 1, an access hole 16 is formed in the top cover 15 of the wastewater pool, one end of the static evaporation type coil heat exchanger 1 is connected with the heat pump air pipe stop valve 9 through a copper pipe 8, and the other end of the static evaporation type coil heat exchanger 1 is connected with the heat pump liquid pipe stop valve 9 through the copper pipe 8.
The operation principle is as follows:
aiming at the recovery of the waste heat of industrial high-temperature wastewater, a static evaporation type coil heat exchanger is divided into n +1 branches, electromagnetic valves are installed at inlets of the first n branches (the specific branch number n is determined by calculation of evaporation area and development test according to different types and the temperature of the wastewater), when the temperature of the wastewater is lower than 40 ℃, the electromagnetic valves 1 to n are all opened through a control circuit in a unit, and the full load ensures that a low-temperature liquid refrigerant in an evaporator is completely evaporated; when the temperature of the wastewater is higher than 45 ℃ (the temperature is determined according to actual tests), the electromagnetic valve 1 is closed, the area of the first path of evaporation coil is unloaded to reduce the evaporation capacity, and the phenomenon that the suction superheat degree of the system is too large is prevented; by analogy, when the temperature of the wastewater continues to rise, the coil branches are unloaded one by one until all the coil branches 1 to n are unloaded, and the last coil n +1 is kept normally open; the temperature of the waste water in the bathing industry does not exceed 40 ℃, and the solenoid valve control is not needed to be added on the branch of the coil pipe.
Has the advantages that:
1. the static evaporation type coil heat exchanger is installed on the upper part of the wastewater pool to evaporate and absorb heat, the installation is simple, the heat exchanger is connected with a unit by a copper pipe like a split type household air conditioner, the occupied area is small, the capital investment of the auxiliary equipment and the operation electric charge of the sewage submersible pump are saved, and hidden troubles (freezing the heat exchanger) caused by the operation fault of the sewage submersible pump are avoided;
2. the water level control device of the wastewater pool is not needed (water shortage and overflow of the water pool due to failure of the water level control device are avoided), the height drop of the horizontal pipes of the water inlet and the water outlet of the wastewater pool is utilized, the water outlet is 30cm lower than the water inlet, the water outlet pipe extends into the wastewater pool and is 20cm away from the bottom, the unit static evaporation type coil heat exchanger is arranged at the upper part of the wastewater pool and is 10cm lower than the water outlet, the temperature of wastewater can be fully absorbed, hot water in the wastewater pool floats upwards and cold water sinks due to small specific gravity and large specific gravity of cold water, the water outlet pipe extends into the bottom to discharge the waste cold water;
3. the water shortage anti-freezing protection is carried out without adding a water flow detection switch at the side of the evaporator; the control circuit in the unit is provided with a waste water temperature sensor and is placed at the position of 10cm below the static evaporation type coil pipe heat exchanger during installation, meanwhile, a waste water tank water replenishing signal port is reserved in the control circuit in the unit, when the water temperature in the waste water tank is reduced to be very low (the low-temperature code C3 can be freely set and is generally set to be 10 ℃), a bathroom bathing area is not replenished with waste water, the water temperature and the water level of the hot water heat-preservation water tank cannot meet the shutdown condition, and at the moment, the heat pump unit can normally operate under the following logic control.
4. The cleaning and maintenance are simple, the static evaporation type coil pipe heat exchanger is not arranged inside the unit, after the vigorous bathing season is finished every year, the top cover of the wastewater tank is opened, the coil pipe heat exchanger is directly washed by a tap water gun, the coil pipe heat exchanger is made of materials such as a titanium pipe, nickel white copper or stainless steel and has strong corrosion resistance, the cleaning is bright as new, and the heat exchange effect is improved quickly.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a static evaporation type coil pipe heat exchanger structure of waste water heat recovery unit which characterized in that: the heat pump system comprises a static evaporation type coil heat exchanger, wherein the static evaporation type coil heat exchanger is arranged in a wastewater pool, one side of the wastewater pool is provided with a wastewater inlet, the other side of the wastewater pool is provided with a wastewater outlet, the wastewater inlet is connected with a drainage pipeline, the drainage pipeline is connected with a wastewater outlet of a bathroom hot water consumption point, the static evaporation type coil heat exchanger is connected with a wastewater heat recovery heat pump unit through a copper pipe, the wastewater heat recovery heat pump unit is connected with a copper pipe, the copper pipe connected with the static evaporation type coil heat exchanger is provided with a heat pump air pipe stop valve and a heat pump liquid pipe stop valve, and the.
2. The static evaporation type coil heat exchanger structure of the wastewater heat recovery unit according to claim 1, characterized in that: the static evaporation type coil heat exchanger comprises n +1 branches, and electromagnetic valves are installed at inlets of the first n branches.
3. The static evaporation type coil heat exchanger structure of the wastewater heat recovery unit according to claim 1, characterized in that: the waste water outlet is 30cm lower than the upper edge of the waste water pool, the waste water outlet is connected with a sewer, and the water outlet pipe extends into the waste water pool and is arranged 20cm away from the bottom of the waste water pool.
4. The static evaporation type coil heat exchanger structure of the wastewater heat recovery unit according to claim 3, characterized in that: the outlet pipe is the type of falling L, outlet pipe pipeline ratio drainage pipe should 1 model at least bigger, the water inlet with the delivery port sets up two opposite faces of wastewater disposal basin.
5. The static evaporation type coil heat exchanger structure of the wastewater heat recovery unit according to claim 1, characterized in that: the static evaporation type coil heat exchanger is arranged above the wastewater tank and 10cm away from the water level.
6. The static evaporation type coil heat exchanger structure of the wastewater heat recovery unit according to claim 1, characterized in that: the waste water temperature sensor is arranged in the waste water pool and is arranged at a position 10cm below the static evaporation type coil heat exchanger, and the waste water temperature sensor controls a water replenishing signal port of the waste water pool in the unit to output water to the underground water submersible pump.
7. The static evaporation type coil heat exchanger structure of the wastewater heat recovery unit according to claim 1, characterized in that: the upper end of the wastewater pond is provided with a wastewater pond top cover, and the wastewater pond top cover is provided with an access hole.
8. The static evaporation type coil heat exchanger structure of the wastewater heat recovery unit according to claim 1, characterized in that: one end of the static evaporation type coil heat exchanger is connected with the heat pump air pipe stop valve through a copper pipe, and the other end of the static evaporation type coil heat exchanger is connected with the heat pump liquid pipe stop valve through the copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922311642.4U CN211781956U (en) | 2019-12-20 | 2019-12-20 | Static evaporation type coil heat exchanger structure of waste water heat recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922311642.4U CN211781956U (en) | 2019-12-20 | 2019-12-20 | Static evaporation type coil heat exchanger structure of waste water heat recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211781956U true CN211781956U (en) | 2020-10-27 |
Family
ID=72975513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922311642.4U Expired - Fee Related CN211781956U (en) | 2019-12-20 | 2019-12-20 | Static evaporation type coil heat exchanger structure of waste water heat recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211781956U (en) |
-
2019
- 2019-12-20 CN CN201922311642.4U patent/CN211781956U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101424132A (en) | Air source heat pump water heater swimming pool constant temperature system | |
| CN201059724Y (en) | Condensate water recycling and utilizing device of water cooled central air-conditioning | |
| CN107386359A (en) | A kind of air conditioner condensate water and wash water intelligence recycle device | |
| CN205776662U (en) | A kind of rain water drainage system | |
| CN107883611B (en) | Bilateral variable-flow sewage source heat pump unit and operation method thereof | |
| CN105276665A (en) | Household heating supply system for domestic wastewater waste heat recovery | |
| CN211781956U (en) | Static evaporation type coil heat exchanger structure of waste water heat recovery unit | |
| CN2853928Y (en) | Waste water recovering and using device | |
| CN211781955U (en) | Waste water heat recovery unit | |
| CN111595013A (en) | Combined air conditioning unit condensate water recycling system | |
| CN206486921U (en) | A kind of intelligent environmental protection type house water system | |
| CN111141026A (en) | Waste water heat recovery unit | |
| CN212299548U (en) | Bathing wastewater waste heat recovery system | |
| CN202853109U (en) | Domestic waste hot water source heat pump hot water system | |
| CN201368618Y (en) | Spray heat recovery device for wastewater | |
| CN203066181U (en) | Bath water recycling system | |
| CN202581794U (en) | Waste water waste heat recovering water heater | |
| CN102980299A (en) | Waste-water waste-heat recycling water-heater | |
| CN216592022U (en) | Cooling water system | |
| CN204385032U (en) | Waste heat recovery Sewage treatment systems | |
| CN106049622A (en) | Wastewater recycling system for building | |
| CN203687339U (en) | Water storage type electric water heater | |
| CN221168085U (en) | Rainwater recycling and discharging system | |
| CN105201054A (en) | Drainage blowdown disposer | |
| CN215572258U (en) | Steam condensate recovery system of medicine purification workshop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |