CN214406206U - Primary-network and secondary-network cold-hot water uniform mixing unit - Google Patents
Primary-network and secondary-network cold-hot water uniform mixing unit Download PDFInfo
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- CN214406206U CN214406206U CN202120236750.4U CN202120236750U CN214406206U CN 214406206 U CN214406206 U CN 214406206U CN 202120236750 U CN202120236750 U CN 202120236750U CN 214406206 U CN214406206 U CN 214406206U
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Abstract
The utility model discloses a primary network secondary network cold and hot water uniform mixing unit, which relates to the technical field of district heating and solves the technical problem that the temperature of hot water is uneven after the hot water enters a secondary pipe network in the prior device, comprising a primary network water inlet pipe and a primary network water return pipe, wherein the primary network water inlet pipe is communicated with a connecting pipe, a first water pump is arranged on the connecting pipe, the primary network water return pipe is communicated with a secondary network water return pipe, the secondary network water return pipe is communicated with a return pipe, a second water pump is arranged on the return pipe, the return pipe and the other end of the connecting pipe are communicated with a water mixing tank together, the device stirs the cold and hot water entering the bottom of the water mixing tank through a first stirring rod and a second stirring rod, improves the mixing effect of the cold and hot water, and starts the first water pump or the second water pump through an external controller according to the temperature higher than a set value or lower than the set value, thereby the flow of balanced back flow and connecting pipe water makes the water temperature that the secondary network inlet tube flows out more balanced.
Description
Technical Field
The utility model relates to a district heat supply technical field specifically is a net secondary network hot and cold water homogeneous mixing unit.
Background
The common heat sources of the centralized heating system comprise a thermal power plant, a regional boiler room and a centralized boiler room, wherein steam or hot water generated by the heat source plant is sent into a primary network, then the heat of the steam or hot water passing through a primary network of a heat exchanger of a heat exchange station is transmitted to a secondary network, finally the heat is sent to a heat user through the secondary network, the heat user sends the heat to the indoor through an indoor radiator to ensure that the indoor temperature is kept at a certain temperature in winter to meet the living and production requirements of people, the primary pipe network water supply design temperature is generally 130 ℃, the secondary pipe network supply and return water design temperature of the radiator is 75 ℃/50 ℃ or 85 ℃/60 ℃, therefore, cold water after cooling needs to be injected into hot water in the primary pipe network before the hot water flows into a secondary pipe network, so as to adjust the temperature of the secondary pipe network, for example, in the utility model patent with the publication number of CN211176989U, a heat exchanger unit primary network secondary network supplementing module is disclosed, comprises a water inlet component, a water tank, a water replenishing variable frequency controller and a water replenishing component, the utility model utilizes the water replenishing variable frequency controller to control the water inlet component to temporarily store the high-temperature backwater of the primary net to the water tank, then the water replenishing frequency conversion controller controls the water replenishing component to replenish water in the water tank to the secondary network so as to meet the requirement of a user on the constant-pressure operation of the secondary network, effectively save the floor area, save the cost of preparing softened water by replenishing water in the secondary network of the heat exchange unit, and simultaneously achieve the effective energy-saving effect and lower investment, can effectively solve the problem that a user is difficult to realize water supply by a primary network and a secondary network on the premise of keeping the configuration of the prior plate type heat exchange unit, however, when the device mixes hot and cold water, because the uneven condition of flow appears in the pressure imbalance in the hot and cold water pipe, lead to the uneven condition of temperature to appear in the temperature behind the hot water entering secondary pipe network after the mixture.
SUMMERY OF THE UTILITY MODEL
The not enough to prior art, the utility model provides a once net secondary network hot and cold water homogeneous mixing unit has solved the uneven technical problem of temperature appears in the temperature behind the current device hot water entering secondary pipe network.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a primary net secondary net cold and hot water uniform mixing unit comprises a primary net water inlet pipe and a primary net water return pipe, wherein the primary net water inlet pipe is communicated with a connecting pipe, a first water pump is installed on the connecting pipe, the primary net water return pipe is communicated with a secondary net water return pipe, the secondary net water return pipe is communicated with a return pipe, a second water pump is installed on the return pipe, the other ends of the return pipe and the connecting pipe are communicated with a water mixing tank together, the water mixing tank is communicated with a secondary net water inlet pipe, a rotating shaft is connected in the water mixing tank in a rotating mode, one end of the rotating shaft penetrates through the upper wall of the water mixing tank and is communicated with a driving device, two shaft sleeves are fixedly connected to the rotating shaft, a plurality of first stirring rods are fixedly connected to the side walls of the two shaft sleeves, a first gear ring gear is fixedly connected to the other ends of the first stirring rods together, two pairs of fixed shafts are fixedly connected to the side walls of the water mixing tank, and gears are rotatably connected to the two pairs of fixed shafts, the gear with the wall meshes mutually on the first ring gear, in the pivot and be located two equal swing joint in axle sleeve top have reverse agitating unit, reverse agitating unit with the gear is linked together, mix the inboard rigid coupling of water tank upper wall and have temperature sensor.
Preferably, the driving device comprises a gearbox, the gearbox is fixedly connected to the upper wall surface of the water mixing tank, the rotating shaft is communicated with the output end of the gearbox, the gearbox is fixedly connected with a motor, and the driving end of the motor is communicated with the input end of the gearbox.
Preferably, the reverse stirring device comprises a deep groove ball bearing, an inner ring of the deep groove ball bearing is fixedly connected to the rotating shaft, a plurality of second stirring rods are fixedly connected to an outer ring of the deep groove ball bearing, the other ends of the second stirring rods are fixedly connected to a second gear ring, and the lower wall surface of the second gear ring is meshed with the gear.
Preferably, the number of the second stirring rods is eight.
Preferably, the return pipe and the connecting pipe are communicated with the bottom of the water mixing tank, and the secondary net water inlet pipe is communicated with the upper part of the water mixing tank.
Preferably, the cross section of the water mixing tank is of a circular structure.
Preferably, a sealing bearing is arranged at the joint of the rotating shaft and the upper wall of the water mixing tank.
Preferably, the number of the first stirring rods is eight.
Advantageous effects
The utility model provides a net secondary network hot and cold water homogeneous mixing unit once possesses following beneficial effect: the first stirring rod can be driven to rotate in the water mixing tank through the rotation of the rotating shaft, the first gear ring is meshed with the gear, the gear is meshed with the second gear ring, so that the second gear ring and the first gear ring rotate in opposite directions, thereby the cold and hot water entering from the bottom of the water mixing tank is secondarily stirred by the second stirring rod in the second gear ring, the mixing effect of the cold and hot water is improved, when the temperature in the water mixing tank changes due to uneven flow of the return pipe and the connecting pipe, an electric signal is sent to the external controller through the temperature sensor, the first water pump or the second water pump is started by the external controller according to the temperature higher than a set value or lower than the set value, thereby the flow of balanced back flow and connecting pipe water makes the water temperature that the secondary network inlet tube flows out more balanced.
Drawings
Fig. 1 is a schematic view of the pipeline connection of the present invention.
Fig. 2 is the internal structure schematic diagram of the water mixing tank of the present invention.
Fig. 3 is a left side view of the water mixing tank of the present invention.
Fig. 4 is a top view of the first ring gear according to the present invention.
Fig. 5 is a bottom view of the second ring gear according to the present invention.
In the figure: 1-a water mixing tank; 11-a temperature sensor; 12-a sealed bearing; 2-a rotating shaft; 3-shaft sleeve; 31-a first stirring rod; 32-a first ring gear; 4-deep groove ball bearing; 41-a second stirring rod; 42-a second ring gear; 5, fixing a shaft; 51-gear; 6-a gearbox; 61-a motor; 7-primary net water inlet pipe; 71-secondary net water inlet pipe; 72-a return pipe; 721-a second water pump; 73-connecting tube; 731-first water pump; 8-primary net water return pipe; 81-secondary net water return pipe.
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. 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.
Referring to fig. 1-5, the present invention provides a technical solution: a primary net secondary net cold and hot water uniform mixing unit comprises a primary net water inlet pipe 7 and a primary net water return pipe 8, wherein the primary net water inlet pipe 7 is communicated with a connecting pipe 73, a first water pump 731 is installed on the connecting pipe 73, the primary net water return pipe 8 is communicated with a secondary net water return pipe 81, the secondary net water return pipe 81 is communicated with a return pipe 72, a second water pump 721 is installed on the return pipe 72, the other ends of the return pipe 72 and the connecting pipe 73 are communicated with a water mixing tank 1 together, the water mixing tank 1 is communicated with a secondary net water inlet pipe 71, a rotating shaft 2 is rotatably connected in the water mixing tank 1, one end of the rotating shaft 2 penetrates through the upper wall of the water mixing tank 1 and is communicated with a driving device, two shaft sleeves 3 are fixedly connected on the rotating shaft 2, a plurality of first stirring rods 31 are fixedly connected on the side walls of the two shaft sleeves 3, a plurality of first gear rings 32 are fixedly connected at the other ends of the first stirring rods 31, two pairs of fixed shafts 5 are fixedly connected to the side wall of the water mixing tank 1, gears 51 are rotatably connected to the two pairs of fixed shafts 5, the gears 51 are meshed with the upper wall surface of the first gear ring 32, reverse stirring devices are movably connected to the rotating shaft 2 and above the two shaft sleeves 3, the reverse stirring devices are communicated with the gears 51, and a temperature sensor 11 is fixedly connected to the inner side of the upper wall of the water mixing tank 1; the driving device comprises a gearbox 6, the gearbox 6 is fixedly connected to the upper wall surface of the water mixing tank 1, the rotating shaft 2 is communicated with the output end of the gearbox 6, a motor 61 is fixedly connected to the gearbox 6, and the driving end of the motor 61 is communicated with the input end of the gearbox 6; the reverse stirring device comprises a deep groove ball bearing 4, the inner ring of the deep groove ball bearing 4 is fixedly connected to the rotating shaft 2, the outer ring of the deep groove ball bearing 4 is fixedly connected with a plurality of second stirring rods 41, the other ends of the second stirring rods 41 are fixedly connected with a second gear ring 42 together, and the lower wall surface of the second gear ring 42 is meshed with the gear 51; the number of the second stirring rods 41 is eight; the return pipe 72 and the connecting pipe 73 are communicated with the bottom of the water mixing tank 1, and the secondary net water inlet pipe 71 is communicated with the upper part of the water mixing tank 1; the cross section of the water mixing tank 1 is of a circular structure; a sealing bearing 12 is arranged at the joint of the rotating shaft 2 and the upper wall of the water mixing tank 1; the number of the first stirring rods 31 is eight.
The following components are provided according to the scheme:
deep groove ball bearings are one of the most widely used rolling bearings. It features small friction resistance and high rotation speed, and can be used for bearing radial load or combined load acted simultaneously in radial and axial directions, and also can be used for bearing axial load.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, and specific connection and control sequences should be obtained.
Example (b): as can be seen from fig. 1-5 of the specification, when in use, the temperature sensor 11, the first water pump 731, the second water pump 721, and the motor 61 are connected to the external controller and the external power source through wires, when in use, hot water in the primary network enters the water mixing tank 1 through the connecting pipe 73, cold water in the secondary network return pipe 81 enters the water mixing tank 1 through the return pipe 72, the motor 61 is started through the external controller, the motor 61 rotates the rotating shaft 2 through the gearbox 6, the first stirring rod 31 can be driven to rotate in the water mixing tank 1 through the rotation of the rotating shaft 2, the gear 51 is engaged with the gear 51 through the first gear ring 32, the gear 51 is engaged with the second gear ring 42, the second gear ring 42 and the first gear ring 31 are in reverse rotation, cold and hot water entering the bottom of the water mixing tank 1 are secondarily stirred through the second stirring rod 41 in the second gear ring 42, after the cold and hot water are stirred through the first stirring rod 31 and the second stirring rod 41, the water flows out through the secondary network water inlet pipe 71 above the water mixing tank 1, when the temperature in the water mixing tank 1 is changed due to the fact that the flow rate of the return pipe 72 and the flow rate of the connecting pipe 73 are uneven, an electric signal is sent to the external controller through the temperature sensor 11, the first water pump 731 or the second water pump 721 is started through the external controller according to the fact that the temperature is higher than a set value or lower than the set value, therefore, the flow rates of the return pipe 72 and the water in the connecting pipe 73 are balanced, and the temperature of the water flowing out from the secondary network water inlet pipe 71 is balanced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Claims (8)
1. A primary net and secondary net cold and hot water uniform mixing unit comprises a primary net water inlet pipe (7) and a primary net water return pipe (8), and is characterized in that the primary net water inlet pipe (7) is communicated with a connecting pipe (73), a first water pump (731) is installed on the connecting pipe (73), the primary net water return pipe (8) is communicated with a secondary net water return pipe (81), the secondary net water return pipe (81) is communicated with a return pipe (72), a second water pump (721) is installed on the return pipe (72), the other ends of the return pipe (72) and the connecting pipe (73) are communicated with a water mixing tank (1) together, the water mixing tank (1) is communicated with a secondary net water inlet pipe (71), a rotating shaft (2) is connected in the water mixing tank (1) in a rotating manner, one end of the rotating shaft (2) penetrates through the upper wall of the water mixing tank (1) and is communicated with a driving device, and two shaft sleeves (3) are fixedly connected to the rotating shaft (2), two the equal rigid coupling of axle sleeve (3) lateral wall has a plurality of first puddler (31), and is a plurality of the common rigid coupling of first puddler (31) other end has first ring gear (32), mix water tank (1) lateral wall rigid coupling and have two pairs of fixed axles (5), two pairs all rotate on fixed axle (5) and be connected with gear (51), gear (51) with wall meshes mutually on first ring gear (32), just be located two on pivot (2) the equal swing joint in axle sleeve (3) top has reverse agitating unit, reverse agitating unit with gear (51) are linked together, mix the inboard rigid coupling of water tank (1) upper wall and have temperature sensor (11).
2. The primary net secondary net cold and hot water uniform mixing unit according to claim 1, wherein the driving device comprises a gearbox (6), the gearbox (6) is fixedly connected to the upper wall surface of the water mixing tank (1), the rotating shaft (2) is communicated with the output end of the gearbox (6), the gearbox (6) is fixedly connected with a motor (61), and the driving end of the motor (61) is communicated with the input end of the gearbox (6).
3. The primary and secondary net cold and hot water uniform mixing unit as claimed in claim 1, wherein the reverse stirring device comprises a deep groove ball bearing (4), the inner ring of the deep groove ball bearing (4) is fixedly connected to the rotating shaft (2), the outer ring of the deep groove ball bearing (4) is fixedly connected with a plurality of second stirring rods (41), the other ends of the plurality of second stirring rods (41) are fixedly connected with a second gear ring (42), and the lower wall surface of the second gear ring (42) is meshed with the gear (51).
4. A hot and cold water homogeneous mixing unit of primary and secondary net according to claim 3, characterized in that the number of said second stirring rods (41) is eight.
5. A primary network secondary network cold and hot water uniform mixing unit as claimed in claim 1, characterized in that said return pipe (72) and connecting pipe (73) are connected with the bottom of said water mixing tank (1), and said secondary network inlet pipe (71) is connected with the upper part of said water mixing tank (1).
6. The primary net secondary net cold and hot water uniform mixing unit as claimed in claim 1, wherein the water mixing tank (1) is circular in cross section.
7. The primary net secondary net cold and hot water uniform mixing unit according to claim 1, characterized in that a sealing bearing (12) is installed at the connection of the rotating shaft (2) and the upper wall of the water mixing tank (1).
8. A primary network secondary network cold and hot water homogeneous mixing unit according to claim 1, characterized in that the number of said first stirring rods (31) is eight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120236750.4U CN214406206U (en) | 2021-01-28 | 2021-01-28 | Primary-network and secondary-network cold-hot water uniform mixing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120236750.4U CN214406206U (en) | 2021-01-28 | 2021-01-28 | Primary-network and secondary-network cold-hot water uniform mixing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214406206U true CN214406206U (en) | 2021-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120236750.4U Active CN214406206U (en) | 2021-01-28 | 2021-01-28 | Primary-network and secondary-network cold-hot water uniform mixing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214406206U (en) |
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2021
- 2021-01-28 CN CN202120236750.4U patent/CN214406206U/en active Active
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