CN217209521U - Negative pressure flow guide water mixing unit for heat exchange station - Google Patents
Negative pressure flow guide water mixing unit for heat exchange station Download PDFInfo
- Publication number
- CN217209521U CN217209521U CN202220930928.XU CN202220930928U CN217209521U CN 217209521 U CN217209521 U CN 217209521U CN 202220930928 U CN202220930928 U CN 202220930928U CN 217209521 U CN217209521 U CN 217209521U
- Authority
- CN
- China
- Prior art keywords
- water
- pipeline
- pipe
- flow
- network
- 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.)
- Active
Links
Images
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The utility model discloses a negative pressure flow guide water mixing unit of a heat exchange station, which comprises a water supply pipeline and a water return pipeline which are connected with a heat exchanger, and also comprises a secondary external network water supply pipeline and a secondary external network water return pipeline, wherein one end of the secondary external network water supply pipeline is connected with a heat consumer, and the other end is connected with the water supply pipeline; one end of the secondary external network water return pipeline is connected with a hot user, the other end of the secondary external network water return pipeline is connected with a network water return pipeline, a bypass pipeline is connected between the network water supply pipeline and the network water return pipeline, and a negative pressure flow guide water mixer is arranged at the joint of the bypass pipeline and the network water supply pipeline; the water supply pipeline of one network is provided with a circulating water pump positioned at the rear end of the negative pressure flow guide water mixer, the bypass pipeline is provided with a flow control valve a positioned at the front end of the negative pressure flow guide water mixer, and the water return pipeline of one network is provided with a flow control valve b positioned at the front end of the heat exchanger. The unit is provided with parallel pipelines, so that flow regulation and temperature regulation are independent and do not influence each other, the unit has good adjustability, and the installation and the operation are convenient and fast.
Description
Technical Field
The utility model relates to a heat supply heat transfer station secondary system adjusts technical field, concretely relates to heat transfer station negative pressure water conservancy diversion mixes water unit.
Background
The working principle of the existing heat supply heat exchange station is that water supplied to the heat exchange station is conveyed to a heat user through an outer pipe network water supply pipeline, then the heat is supplied to the user through a heat user radiator, the returned water coming out of the user radiator is input into a heat exchanger through an input water pump through a return water pipeline in the heat exchange station, the heat is exchanged out of the heat exchanger, and the water is supplied to an outer network through a pipeline in a circulating reciprocating mode.
However, the following disadvantages exist in the prior art: because the series pipeline leads to flow and temperature control to influence each other, the temperature can reduce when increasing the flow, and the flow can reduce when increasing the temperature, otherwise, the temperature can rise when the system is decreased the flow, and the flow can increase when decreasing the temperature, can't separate flow and temperature control, causes flow and temperature control and can't reach the maximum value, can only solve through increasing equipment capacity, and this also causes the main reason that prior art power consumptive height. The defects also cause the insufficient flow of the end user of the system, influence the heat supply quality and can not reduce the energy consumption of the system.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that current heat transfer station supplies the flow that the return water series connection pipeline leads to and temperature regulation influence each other, the utility model provides a heat transfer station negative pressure water conservancy diversion mixes water set sets up parallelly connected pipeline, can make flow regulation and temperature regulation independent mutually, and each other does not influence, and the unit adjustability is good, and installation, operation are convenient.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: a negative pressure flow-guiding water mixing unit for a heat exchange station comprises a primary pipe network side and a secondary outer pipe network side of the heat exchange station, wherein the primary pipe network side of the heat exchange station comprises a primary water supply pipeline and a primary water return pipeline which are connected with a heat exchanger, the secondary outer pipe network side comprises a secondary outer network water supply pipeline and a secondary outer network water return pipeline, one end of the secondary outer network water supply pipeline is connected with a hot user, and the other end of the secondary outer network water supply pipeline is connected with a primary water supply pipeline; one end of the secondary external network water return pipeline is connected with a hot user, the other end of the secondary external network water return pipeline is connected with a network water return pipeline, a bypass pipeline is connected between the network water supply pipeline and the network water return pipeline, and a negative pressure flow guide water mixer is arranged at the joint of the bypass pipeline and the network water supply pipeline; the water supply pipeline of one network is provided with a circulating water pump positioned at the rear end of the negative pressure flow guide water mixer, the bypass pipeline is provided with a flow control valve a positioned at the front end of the negative pressure flow guide water mixer, and the water return pipeline of one network is provided with a flow control valve b positioned at the front end of the heat exchanger.
As a further embodiment of the present invention, the negative pressure diversion water mixer comprises a main body shell, a main water flow pipe, a secondary water flow pipe and a connecting pipe, wherein the main body shell is hollow, and two ends of the main body shell are respectively communicated with a tapered variable diameter pipe section a and a tapered variable diameter pipe section b; one end of the main water flow pipe extends into the main body shell from the port a of the reducing pipe section a, and the other end of the main water flow pipe is positioned outside the reducing pipe section a and is communicated with a network water supply pipeline; one end of the secondary water flow pipe is connected to the side wall of the bottom of the main body shell, and the other end of the secondary water flow pipe is communicated with the bypass pipeline; one end of the connecting pipe is connected with the port b of the reducing pipe section, and the other end of the connecting pipe is connected with the suction port of the circulating water pump.
As a further embodiment of the utility model, the inside reinforcement welding piece that is equipped with of main body cover, reinforcement welding piece fixed connection are between main body cover inner wall and main rivers pipe outer wall.
As a further embodiment of the utility model, be equipped with the dirt separator on one net return water pipe, the dirt separator is located the front end position of bypass line and one net return water pipe junction.
As a further embodiment of the utility model, be equipped with a plurality of valves on a net return water pipe, be located both ends, flow control valve b front end and heat exchanger front end around the dirt separator respectively.
As a further embodiment of the utility model, be equipped with a plurality of valves on the water supply pipe of a net, both ends around both ends and the circulating water pump around being located the heat exchanger respectively.
As a further embodiment of the present invention, the bypass pipeline is provided with a valve located at the front end of the flow control valve a.
The beneficial effects of the utility model include: the system is provided with a circulating water pump by shunting the return water of the system, exchanging heat all the way and bypassing all the way, so that the independence of heat exchange, flow and temperature regulation of a unit is realized while system circulation is realized on the premise of not additionally arranging the water pump, the power consumption is reduced, the heat supply quality is improved, and the installation and the operation are convenient. In addition, the negative pressure flow guide water mixer has the entrainment function of the primary water flow to the secondary water flow, so that the resistance reducing effect is outstanding. Because the heat exchange flow and the bypass flow of the unit are adjusted by the two flow control valves, the operation flow and the temperature of the unit can be adjusted more conveniently. The flow of the negative pressure diversion water mixing unit of the heat exchange station is changed and low-resistance pipeline equipment is configured, so that the configuration power of a water pump of the unit is reduced, and compared with the prior art, the electricity can be saved by more than 15%. The negative pressure diversion water mixing unit system of the heat exchange station has good water circulation saturation, and solves the problem that the heat supply quality is influenced by insufficient flow of a terminal user in the prior art; the adjustability is achieved, and therefore the function of reducing heat consumption of the heat exchange station is achieved.
Drawings
Fig. 1 is a schematic view of the overall structure of a negative pressure diversion water mixing unit of the heat exchange station of the present invention;
fig. 2 is a schematic structural view of the negative pressure diversion water mixer of the present invention;
fig. 3 is a schematic diagram of the marks of the negative pressure diversion water mixer entrainment cabin section and the water mixing cabin section.
The reference numbers in the figures illustrate: 1. the device comprises a main body shell, 2, reducing pipe sections a and 3, reducing pipe sections b and 4, a main water flow pipe, 5, a secondary water flow pipe, 6, a connecting pipe, 7, a reinforcing welding piece, 101, a entrainment cabin section, 102 and a water mixing cabin section;
8. the system comprises a heat exchanger, 9 parts of a network water supply pipeline, 10 parts of a network water return pipeline, 11 parts of a heat user, 12 parts of a secondary external network water supply pipeline, 13 parts of a secondary external network water return pipeline, 14 parts of a bypass pipeline, 15 parts of a negative pressure diversion water mixer, 16 parts of a circulating water pump, 17 parts of a flow control valve a, 18 parts of a flow control valve b, 19 parts of a dirt remover, 20 parts of a valve, 21 parts of a pressure gauge, 22 parts of a thermometer.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or component referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used merely to distinguish one element from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
A negative pressure diversion water mixing unit of a heat exchange station is completely different from the flow in the prior art in the circulating flow, the unit divides the return water of a system, one path of heat exchange and one path of bypass are provided with a water pump, the flow and the temperature are regulated and separated, the problem that the flow and the temperature are mutually influenced in the secondary system of the conventional heat supply heat exchange station is solved, and the problems that the heat supply quality is influenced due to insufficient flow of a user at the tail end of the system and the power consumption is high and the heat consumption is not suitable for regulation are further solved;
which comprises a primary pipe network side and a secondary outer pipe network side of a heat exchange station,
the primary pipe network side of the heat exchange station comprises a network water supply pipeline 9 and a network water return pipeline 10 which are connected with the heat exchanger 8,
the secondary outer pipe network side comprises a secondary outer network water supply pipeline 12 and a secondary outer network water return pipeline 13,
one end of the secondary external network water supply pipeline 12 is connected with the heat consumer 11, and the other end is connected with the network water supply pipeline 9; one end of the secondary external network water return pipeline 13 is connected with the hot user 11, the other end is connected with the one-network water return pipeline 10,
a bypass pipeline 14 is connected between the net water supply pipeline 9 and the net water return pipeline 10,
a negative pressure flow-guiding water mixer 15 is arranged at the joint of the bypass pipeline 14 and the one-network water supply pipeline 9; because the low-resistance negative-pressure flow-guiding water mixer 15 is configured, the pressure flow-guiding water mixer 15 has the entrainment function of the main water flow to the secondary water flow, the intensity of the extrusion vortex when the two water flows meet is reduced, and the resistance of the flow-guiding water-mixing process is reduced.
The one-net water supply pipeline 9 is provided with a circulating water pump 16 positioned at the rear end of the negative pressure diversion water mixer 15, namely the negative pressure diversion water mixer 15 is connected to a suction port of the circulating water pump 16; a plurality of valves 20 are also arranged and are respectively positioned at the front end and the rear end of the heat exchanger 8 and the front end and the rear end of the circulating water pump 16; a plurality of pressure gauges 21 are also arranged and are respectively positioned at the front end and the rear end of the heat exchanger 8 and the front end and the rear end of the circulating water pump 16; a plurality of thermometers 22 are respectively arranged at the front end and the rear end of the heat exchanger 8 and at the rear end of the circulating water pump 16;
the bypass pipe 14 is provided with a flow control valve a17 at the front end of the negative pressure guided water mixer 15, and a valve 20 at the front end of the flow control valve a 17. Preferably, the flow control valve a17 is a self-operated flow control valve.
The one-network water return pipeline 10 is provided with a flow control valve b18 positioned at the front end of the heat exchanger 8; preferably, the flow control valve b18 is a self-operated flow control valve; the sewage remover 19 is also arranged, and the sewage remover 19 is positioned at the front end position of the joint of the bypass pipeline 14 and the one-network water return pipeline 10; a plurality of valves 20 are also arranged and are respectively positioned at the front end and the rear end of the dirt separator 19, the front end of the flow control valve b18 and the front end of the heat exchanger 8; a plurality of pressure gauges 21 are also arranged and are respectively positioned at the front end and the rear end of the heat exchanger 8 and the front end and the rear end of the dirt separator 19; a plurality of thermometers 22 are also arranged at the rear end of the heat exchanger 8 and the rear end of the dirt separator 19 respectively.
The working principle of the heat exchange station negative pressure diversion water mixing unit is as follows: the system return water enters the heat exchange station, flows through the dirt separator 19, and then is divided: one part is heat exchange backwater, the heat exchange backwater passes through a flow control valve b18 and then is subjected to heat exchange by a heat exchanger 8, and the heat exchange backwater enters a network water supply pipeline 9; the other part is heat exchanger external bypass backwater which enters the negative pressure diversion water mixer 15 after passing through a flow control valve a 17; the heated and bypassed two paths of shunt backwater are respectively input into the negative pressure diversion water mixer 15 through pipelines, enter a suction port of the circulating water pump 16 after diversion water mixing, are pressurized by the circulating water pump 16 and then are conveyed to a heat user 11 through a water supply pipeline, the hot water enters the user and is supplied to the user through heat dissipation of a radiator, the backwater coming out of the user returns to a heat exchange station through a backwater pipeline, and then is shunted to carry out next circulation after passing through the dirt separator 19.
It should be noted that when the unit needs to adjust the heat exchange flow, the flow control valve a17 and the flow control valve b18 are adjusted at the same time, and when the heat exchange flow is increased, the opening degree of the flow control valve a17 is decreased, and the opening degree of the flow control valve b18 is increased; the operation is opposite when the heat exchange flow is reduced.
The flow of the negative pressure diversion water mixing unit of the heat exchange station is changed and low-resistance pipeline equipment is configured, so that the configuration power of a water pump of the unit is reduced, and compared with the prior art, the electricity can be saved by more than 15%. The water circulation saturation of the unit system is good, and the problem that the heat supply quality is influenced by insufficient flow of a terminal user in the prior art is solved. The unit has adjustability, thereby realizing the function of reducing the heat consumption of the heat exchange station. Because the heat exchange flow and the bypass flow of the unit are adjusted by the two self-operated electric balance valves, the operation flow and the temperature of the unit can be adjusted more conveniently. The system circulation is realized by using one circulating water pump 16, and the separation of heat exchange, flow and temperature regulation of the unit is also realized, so that the power consumption is reduced, the heat consumption is reduced, and the heat supply quality is improved.
Example 2
The negative pressure diversion water mixer 15 is arranged at the suction port of the circulating water pump 16, and the negative pressure formed by the suction port of the circulating water pump 16 is utilized to enable the water mixer to have a entrainment function, so that the water mixing resistance of a heating system can be reduced.
Specifically, the structure thereof comprises:
the water flow mixing device comprises a cylindrical main body shell 1 with a hollow interior, wherein two ends of the main body shell 1 are respectively communicated with a tapered variable diameter pipe section a2 and a tapered variable diameter pipe section b3, so that the water flow pressure can be enhanced, and the water flow mixing is facilitated;
also comprises a main water flow pipe 4, a secondary water flow pipe 5 and a connecting pipe 6,
one end of the main water flow pipe 4 extends into the main body shell 1 from the port of the reducing pipe section a2, and the other end is positioned outside the reducing pipe section a2 and communicated with a network water supply pipeline 9; a reinforcing welding part 7 is arranged inside the main body shell 1, and the reinforcing welding part 7 is fixedly connected between the inner wall of the main body shell 1 and the outer wall of the main water flow pipe 4 and used for stabilizing the main water flow pipe 4;
one end of the secondary water flow pipe 5 is connected to the side wall of the bottom of the main body shell 1, and the other end of the secondary water flow pipe is communicated with the bypass pipeline 14; the length of the main water flow pipe 4 depends on the pipe diameter of the secondary water flow pipe 5, and the length value of the main water flow pipe 4 is as follows: the outer diameter of the secondary water flow pipe 5 is not less than +300 mm;
specifically, the secondary water flow pipe 5 is optimally set to: the horizontal distance between the water outlet of the secondary water flow pipe 5 and the water outlet of the main water flow pipe 4 is not less than 100mm, and the horizontal distance between the water inlet of the secondary water flow pipe 5 and the water inlet of the main water flow pipe 4 is not less than 200 mm. If the secondary water flow pipe 5 approaches to the water inlet direction, the entrainment difficulty is increased, and the eddy strength is increased when the secondary water flow pipe approaches to the water outlet direction.
The diameters of the main water flow pipe 4 and the secondary water flow pipe 5 are determined according to the flow rates, and the diameter of the main body shell 1 depends on the water containing quantity and the water passing sectional area.
In the above embodiment, a entrainment cabin section 101 is formed between the outer wall of the main water flow pipe 4 and the inner wall of the main body casing 1, and a mixing cabin section 102 is formed between the plane of the water outlet port of the main water flow pipe 4 and the inner end surface of the main body casing 1 on the side close to the circulating pump;
one end of the connecting pipe 6 is connected with the port of the reducing pipe section b3, and the other end is connected with the suction port of the circulating water pump 16.
Preferably, the main body shell 1, the reducing pipe section a2, the reducing pipe section b3, the main water flow pipe 4, the secondary water flow pipe 5 and the connecting pipe 6 are all seamless pipes, and the thickness of the pipe wall is not less than 7 mm.
The negative pressure flow guiding water mixer 15 is arranged at a suction port of the circulating water pump 16, the circulating water pump 16 generates negative pressure on the circulating water pump, the main water flow forms negative pressure on the secondary water flow, the secondary water flow is adsorbed at the entrainment cabin section 101, and the lowest eddy resistance formed in the squeezing process of the two water flows is realized; the two water flows converge and are primarily mixed in the water mixing chamber section 102, and then are further finely mixed in the process of pressurizing by the circulating water pump 16.
The negative pressure flow guiding water mixer 15 has a entrainment function, so that the strength of a vortex generated by the two water flows due to the mutual extrusion is reduced in the flow guiding water mixing process, and the resistance of the negative pressure flow guiding water mixer 15 is low. The negative pressure generated by the suction port of the system circulating water pump 16 is mainly utilized to realize the function, the flow guiding water mixing resistance reduction is designed according to the entrainment principle that the main water flow forms the secondary water flow in the water flow spraying process, and the resistance reduction effect in the flow guiding water mixing process is obvious.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. A negative pressure diversion water mixing unit for a heat exchange station comprises a primary pipe network side and a secondary outer pipe network side of the heat exchange station, wherein the primary pipe network side of the heat exchange station comprises a primary water supply pipeline (9) and a primary water return pipeline (10) which are connected with a heat exchanger (8), the secondary outer pipe network side comprises a secondary outer network water supply pipeline (12) and a secondary outer network water return pipeline (13), one end of the secondary outer network water supply pipeline (12) is connected with a heat consumer (11), and the other end of the secondary outer network water supply pipeline is connected with the primary water supply pipeline (9); one end of the secondary external network water return pipeline (13) is connected with a heat user (11), and the other end of the secondary external network water return pipeline is connected with a network water return pipeline (10), and the secondary external network water return pipeline is characterized in that a bypass pipeline (14) is connected between the network water supply pipeline (9) and the network water return pipeline (10), and a negative pressure diversion water mixer (15) is arranged at the joint of the bypass pipeline (14) and the network water supply pipeline (9); a circulating water pump (16) positioned at the rear end of the negative pressure flow-guiding water mixer (15) is arranged on the one-net water supply pipeline (9), a flow control valve a (17) positioned at the front end of the negative pressure flow-guiding water mixer (15) is arranged on the bypass pipeline (14), and a flow control valve b (18) positioned at the front end of the heat exchanger (8) is arranged on the one-net water return pipeline (10).
2. The negative-pressure diversion water mixing unit of the heat exchange station according to claim 1, wherein the negative-pressure diversion water mixing device (15) comprises a main body shell (1), a main water flow pipe (4), a secondary water flow pipe (5) and a connecting pipe (6), wherein the main body shell (1) is hollow, and two ends of the main body shell are respectively communicated with a tapered variable-diameter pipe section a (2) and a tapered variable-diameter pipe section b (3); one end of the main water flow pipe (4) extends into the main body shell (1) from the port of the reducing pipe section a (2), and the other end is positioned outside the reducing pipe section a (2) and communicated with a network water supply pipeline (9); one end of the secondary water flow pipe (5) is connected to the side wall of the bottom of the main body shell (1), and the other end of the secondary water flow pipe is communicated with the bypass pipeline (14); one end of the connecting pipe (6) is connected with the port of the reducing pipe section b (3), and the other end of the connecting pipe is connected with a suction port of the circulating water pump (16).
3. The negative-pressure diversion water mixing unit for the heat exchange station as claimed in claim 2, wherein a reinforcing welding part (7) is arranged inside the main body casing (1), and the reinforcing welding part (7) is fixedly connected between the inner wall of the main body casing (1) and the outer wall of the main water flow pipe (4).
4. A heat exchange station negative pressure diversion water mixing unit according to claim 1, characterized in that a dirt separator (19) is arranged on the net water return pipe (10), and the dirt separator (19) is located at the front end position of the connection of the bypass pipe (14) and the net water return pipe (10).
5. The negative-pressure diversion water mixing unit of the heat exchange station as claimed in claim 4, wherein a plurality of valves (20) are arranged on the one-net water return pipeline (10) and are respectively arranged at the front end and the rear end of the dirt separator (19), the front end of the flow control valve b (18) and the front end of the heat exchanger (8).
6. The negative-pressure diversion water mixing unit of the heat exchange station as claimed in claim 1, wherein a plurality of valves (20) are arranged on the water supply pipeline (9) and are respectively arranged at the front end and the rear end of the heat exchanger (8) and at the front end and the rear end of the circulating water pump (16).
7. The negative pressure diversion water mixing set for the heat exchange station as claimed in claim 1, wherein the bypass pipe (14) is provided with a valve (20) located at the front end of the flow control valve a (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220930928.XU CN217209521U (en) | 2022-04-21 | 2022-04-21 | Negative pressure flow guide water mixing unit for heat exchange station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220930928.XU CN217209521U (en) | 2022-04-21 | 2022-04-21 | Negative pressure flow guide water mixing unit for heat exchange station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217209521U true CN217209521U (en) | 2022-08-16 |
Family
ID=82773346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220930928.XU Active CN217209521U (en) | 2022-04-21 | 2022-04-21 | Negative pressure flow guide water mixing unit for heat exchange station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217209521U (en) |
-
2022
- 2022-04-21 CN CN202220930928.XU patent/CN217209521U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108847497B (en) | Thermal management system for vehicle fuel cell | |
| CN207146934U (en) | It is pressurized backwater controller and water heater | |
| CN106767018B (en) | The fractal for coupling jacket type pitches structure heat exchanger | |
| CN217209521U (en) | Negative pressure flow guide water mixing unit for heat exchange station | |
| CN208186856U (en) | A kind of Teat pump boiler | |
| CN217383862U (en) | Negative pressure jet flow guide water mixer | |
| CN210601834U (en) | Decoupling flow adjusting device | |
| CN209541485U (en) | A kind of shell pipe water storage instant heat exchanger | |
| CN113562791A (en) | Waterway structure and water purifier | |
| CN207703501U (en) | A kind of Teat pump boiler detection test equipment | |
| CN210374710U (en) | Heat exchanger | |
| CN206379443U (en) | For the battery heating device of electric car and the electric car with it | |
| CN218599831U (en) | Hydraulic balance device for regional transmission and distribution pipe network | |
| CN212842216U (en) | Air energy water heater with simple structure | |
| CN219433476U (en) | Electric water heater | |
| CN216107237U (en) | Electrolytic hydrogen production assembly | |
| CN220907191U (en) | Degassing device, multifunctional micro-nano bubble machine and heating system | |
| CN214171654U (en) | Flow guider for making water flow smoothly transit | |
| CN105650949A (en) | Control method for two-work-condition evaporator | |
| CN221005467U (en) | Water tank for water heater and gas water heater | |
| CN209877715U (en) | Novel water-water heat exchange unit | |
| CN216114668U (en) | Split electric water heater | |
| CN215489117U (en) | Valve faucet with auxiliary connection function | |
| CN212300041U (en) | Plate heat exchanger flow regulating mechanism | |
| CN215479812U (en) | Waterway structure and water purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |