Heat supply primary pipe network water mixing device

Abstract

The utility model discloses a heat supply primary pipe network water mixing device, which relates to the technical field of heat supply system operation regulation and structurally comprises a primary mixing cylinder, a top flange of the primary mixing cylinder is connected with an end cover, one side of the primary mixing cylinder is connected with a water supply pipe through a pipe, and the other side of the primary mixing cylinder is connected with a water return pipe through a pipe. First water valves are fixedly mounted on the surface of the water supply pipe and the surface of the water return pipe, the bottom of the primary mixing barrel is in pipe connection with a connecting pipe, one end of the connecting pipe is in pipe connection with a remixing barrel, one side of the remixing barrel is in pipe connection with an injection pipe, one end of the injection pipe is in pipe connection with a diffusion pipe, and a buffer filtering mechanism is arranged in the primary mixing barrel. The heat supply primary pipe network water mixing device can prevent mixed cold and hot water from directly impacting the inner wall of the primary mixing barrel, the service life of the whole system is prolonged, impurities in the cold and hot water can be filtered, the mixing environment of a follow-up pipeline is improved, and the mixing effect of the cold and hot water is improved.

Description

Technical Field

[0001] This utility model relates to the field of heating system operation and regulation technology, specifically a mixing device for a primary heating network. Background Technology

[0002] A heating system is a general term encompassing boiler room units, outdoor heating pipe networks, and radiators. Heat sources include thermal power plants, centralized boiler rooms, low-temperature nuclear heating stations, heat pumps, geothermal energy, industrial waste heat, and solar energy. The heating pipe network consists of pipes and accessories between the heat source and the heating station, and between the heating station and the user. Heat conversion facilities include heating stations and refrigeration stations. Heat users are a heat user system composed of heating, domestic, and industrial heat systems. The heating system supplies heat energy to many different heat users, covering a wide range.

[0003] A jet pump is a type of fluid machinery used in the mixing device of a primary heating network. Its working principle is based on the principles of fluid dynamics and fluid mechanics. The jet pump mainly consists of a nozzle, a mixing chamber, and a diffuser. When fluid is ejected from the nozzle, the pressure of the primary network water supply is relatively high. Utilizing the large pressure difference between the supply and return water, its velocity and kinetic energy increase, and it enters the mixing chamber to mix with the fluid from the inlet, thereby achieving the effects of reducing the supply water temperature and increasing the flow rate. Using a jet pump in a primary network mixing system results in a simple system, automatic control, low investment, quick results, and good economic benefits.

[0004] In existing primary heating network mixing devices, the water in the supply and return pipes directly impacts the inner wall of the mixing drum. This prolonged impact damages the inner wall of the mixing drum, reducing its lifespan and consequently the lifespan of the entire device. Furthermore, the presence of impurities in the hot and cold water further degrades the mixing environment in subsequent pipes. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a mixing device for a primary heating network. It solves the problem that water in the supply and return pipes directly impacts the inner wall of the mixing cylinder, which damages the inner wall of the mixing cylinder due to prolonged impact, reducing the service life of the mixing cylinder and consequently reducing the service life of the entire system. Furthermore, it addresses the issue that impurities in the hot and cold water can negatively impact the mixing environment in subsequent pipelines.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a mixing device for a primary heating network, comprising a primary mixing cylinder, an end cap connected to the top flange of the primary mixing cylinder, a water supply pipe connected to one side of the primary mixing cylinder, a return water pipe connected to the other side of the primary mixing cylinder, a first water valve fixedly installed on the surface of both the water supply pipe and the return water pipe, a connecting pipe connected to the bottom of the primary mixing cylinder, a remixing cylinder connected to one end of the connecting pipe, a jet pipe connected to one side of the remixing cylinder, a diffuser connected to one end of the jet pipe, a buffer filtration mechanism inside the primary mixing cylinder, a stirring mechanism inside the remixing cylinder, and a second water valve fixedly installed on the surface of the jet pipe. Opening the first water valve supplies hot water to the interior of the primary mixing cylinder through the water supply pipe. Simultaneously, cold water is supplied via the return water pipe, allowing both hot and cold water to enter the primary mixing drum for initial mixing. Then, the water flows through a connecting pipe into the secondary mixing drum for a second mixing process, resulting in a more uniform mixture. The mixed water is then sprayed out through a spray nozzle after the second water valve is opened. The spray is further diffused through a diffuser to increase the spray range. When the hot and cold water enter the primary mixing drum, a buffer filtration mechanism filters out impurities and buffers the water flow, preventing direct impact on the drum's inner wall. Prolonged impact on the drum's inner wall can damage it, reducing the system's lifespan. The agitator, after initial mixing, further enhances the thoroughness and mixing effect of the hot and cold water.

[0009] Preferably, the buffer filtration mechanism includes a filter plate, and an X-shaped plate is fixedly connected to the top of the filter plate. The filter plate can filter the hot and cold water entering the primary mixing cylinder, prevent impurities from entering the system, and improve the subsequent pipeline environment. The X-shaped plate can prevent the water flow from directly impacting the inner wall of the primary mixing cylinder, thus protecting the inner wall of the primary mixing cylinder.

[0010] Preferably, positioning strips are fixedly connected to the four corners of the X-shaped plate, and positioning grooves are provided on the inner wall of the primary mixing cylinder. The positioning strips are inserted into the positioning grooves. The positioning strips and positioning grooves facilitate the disassembly and installation of filter plates, and prevent the X-shaped plate from rotating, so as to ensure that the buffer plate on the X-shaped plate can be aligned with the output end of the water supply pipe and the return pipe, thereby buffering the incoming water flow.

[0011] Preferably, the X-shaped plate has a snap-fit ​​groove on the front and back, and a water guide groove on both sides. The snap-fit ​​groove makes it easy for people to take out and install the X-shaped plate, and the water guide groove can guide the water flowing onto the X-shaped plate to both sides.

[0012] Preferably, an annular sealing plate is fixedly connected to the inner wall of the primary mixing cylinder, and the filter plate is placed on top of the annular sealing plate. The annular sealing plate can seal the filter plate and the primary mixing cylinder, preventing unfiltered water from entering the bottom of the primary mixing cylinder and ensuring the filtration effect.

[0013] Preferably, the buffer filtration mechanism further includes a rotating rod, which is rotatably connected to both sides of the X-shaped plate. A buffer plate is fixedly connected to the surface of the rotating rod, and a buffer spring is elastically connected between the surface of the buffer plate and the X-shaped plate. Water entering the primary mixing cylinder will hit the buffer plate, and the impact of the water flow can be reduced by the left and right swaying of the buffer plate and the buffering effect of the buffer spring. Furthermore, the X-shaped plate ensures that the water flow on both sides does not directly impact the inner wall of the primary mixing cylinder, but flows to the surface of the X-shaped plate and is guided away by the water guide groove, thereby better protecting the primary mixing cylinder and extending the overall service life of the system. The filter plate can filter impurities in the hot and cold water, preventing impurities from being present in the mixed water and clogging the downstream pipes, which would be difficult to clean. By opening the end cover and holding the buckle, the filter plate and X-shaped plate can be easily removed as a whole, and the impurities on the filter plate can be cleaned to ensure the filtration effect of the filter plate.

[0014] Preferably, the stirring mechanism includes a rotating shaft, and multiple rotating shafts are uniformly rotatably connected to the inner wall of the remixing pipe. Stirring blades are fixedly connected to the surface of the rotating shaft, and multiple stirring blades are also provided. When the water after initial mixing is stirred by the stirring mechanism, the rotating shaft rotates continuously due to the impact of the water flow, thereby driving the stirring blades to continuously stir, which can fully stir and mix the initially mixed water, improving the mixing effect of hot and cold water.

[0015] (III) Beneficial Effects

[0016] This utility model provides a mixing device for a primary heating network. It has the following beneficial effects:

[0017] (i) The mixing device of the primary heating network, by using the X-shaped plate, buffer plate, buffer spring and other components in the buffer filter mechanism, can prevent the hot and cold water entering the mixing from directly impacting the inner wall of the primary mixing cylinder, and can also buffer the water flow, reduce the impact of the water flow on the primary mixing cylinder, extend the service life of the primary mixing cylinder, and thus extend the overall service life of the system.

[0018] (II) The mixing device of the primary heating network can filter impurities in hot and cold water by setting filter plates and annular sealing plates in the buffer filtration mechanism, so as to prevent impurities in the mixed water from clogging the downstream pipes and making them difficult to clean. Furthermore, by opening the end cover and holding the buckle, the filter plate and X-shaped plate can be easily removed as a whole and the impurities on the filter plate can be cleaned to ensure the filtration effect of the filter plate.

[0019] (III) The mixing device of the primary heating network, through the setting of the stirring mechanism, causes the rotating shaft to rotate continuously due to the impact of the water flow, thereby driving the stirring blades to stir continuously, thus fully stirring and mixing the initially mixed water, improving the mixing effect of hot and cold water.

[0020] (iv) The heating primary pipeline mixing device, through the setting of the primary mixing cylinder and the secondary mixing cylinder, can perform preliminary mixing of cold and hot water and then perform secondary mixing, so that the mixing time of cold and hot water is longer and the mixing effect is better. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a front sectional view of the entire utility model;

[0023] Figure 3 This is a schematic diagram of the overall front view of the buffer filtration mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the primary mixing cylinder of this utility model;

[0025] Figure 5 This is a schematic diagram of the overall side structure of the buffer filtration mechanism of this utility model;

[0026] Figure 6 This is a schematic diagram of the stirring mechanism of this utility model.

[0027] In the diagram: 1. Primary mixing drum; 2. End cap; 3. Water supply pipe; 4. Water return pipe; 5. First water valve; 6. Connecting pipe; 7. Second mixing drum; 8. Jet pipe; 9. Diffuser pipe; 10. Buffer filtration mechanism; 101. Filter plate; 102. X-shaped plate; 103. Positioning strip; 104. Positioning groove; 105. Clip groove; 106. Water guide groove; 107. Annular sealing plate; 108. Rotating rod; 109. Buffer plate; 1010. Buffer spring; 11. Stirring mechanism; 111. Rotating shaft; 112. Stirring blade; 12. Second water valve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] See Figure 1-6 This utility model provides a technical solution: a mixing device for a primary heating network, comprising a primary mixing cylinder 1, an end cap 2 connected to the top flange of the primary mixing cylinder 1, a water supply pipe 3 connected to one side of the primary mixing cylinder 1, a return water pipe 4 connected to the other side of the primary mixing cylinder 1, a first water valve 5 fixedly installed on the surface of both the water supply pipe 3 and the return water pipe 4, a connecting pipe 6 connected to the bottom of the primary mixing cylinder 1, a remixing cylinder 7 connected to one end of the connecting pipe 6, a spray pipe 8 connected to one side of the remixing cylinder 7, a diffuser pipe 9 connected to one end of the spray pipe 8, a buffer filter mechanism 10 installed inside the primary mixing cylinder 1, a stirring mechanism 11 installed inside the remixing cylinder 7, and a second water valve 12 fixedly installed on the surface of the spray pipe 8. When the first water valve 5 is opened, hot water is supplied to the interior of the primary mixing cylinder 1 through the water supply pipe 3, while simultaneously utilizing the return water pipe... 4. Cold water is supplied, so that both hot and cold water enter the primary mixing tank 1 simultaneously for initial mixing. Then, it enters the secondary mixing tank 7 through the connecting pipe 6 for secondary mixing, making the hot and cold water more evenly mixed. After mixing, the water is sprayed out through the second water valve 12 and the spray pipe 8. When spraying, it is diffused through the diffuser pipe 9 to increase the spray range. When the hot and cold water enter the primary mixing tank 1, the buffer filter mechanism 10 can filter the impurities in the hot and cold water and buffer the water flow entering the primary mixing tank 1 to prevent the water flow from directly impacting the inner wall of the primary mixing tank 1. Prolonged impact of the water flow on the inner wall of the primary mixing tank 1 will damage it and reduce the service life of the system. After initial mixing, the water is stirred by the stirring mechanism 11 to make the hot and cold water mix more thoroughly and the mixing effect better.

[0030] The buffer filtration mechanism 10 includes a filter plate 101, with an X-shaped plate 102 fixedly connected to the top of the filter plate 101. The filter plate 101 can filter the hot and cold water entering the primary mixing cylinder 1, preventing impurities from entering the system and improving the subsequent pipeline environment. The X-shaped plate 102 can prevent water flow from directly impacting the inner wall of the primary mixing cylinder 1, thus protecting the inner wall of the primary mixing cylinder 1.

[0031] The X-shaped plate 102 is fixedly connected to four corners with positioning strips 103. The inner wall of the primary mixing cylinder 1 is provided with positioning grooves 104. The positioning strips 103 are inserted into the inside of the positioning grooves 104. Through the setting of the positioning strips 103 and the positioning grooves 104, the filter plate 101 and other components can be easily disassembled and installed, and the X-shaped plate 102 can be prevented from rotating, so as to ensure that the buffer plate 109 on the X-shaped plate 102 can be aligned with the output end of the water supply pipe 3 and the return water pipe 4, thereby buffering the incoming water flow.

[0032] The X-shaped plate 102 has a buckle groove 105 on the front and back, and a water guide groove 106 on both sides. The buckle groove 105 makes it easy for people to take out and install the X-shaped plate 102, and the water guide groove 106 can guide the water flowing to the X-shaped plate 102 to both sides.

[0033] The inner wall of the primary mixing cylinder 1 is fixedly connected with an annular sealing plate 107, and the filter plate 101 is placed on top of the annular sealing plate 107. The annular sealing plate 107 can seal the filter plate 101 and the primary mixing cylinder 1, preventing water with unfiltered impurities from entering the bottom of the primary mixing cylinder 1 and ensuring the filtration effect.

[0034] The buffer filtration mechanism 10 also includes a rotating rod 108, which is rotatably connected to both sides of the X-shaped plate 102. A buffer plate 109 is fixedly connected to the surface of the rotating rod 108. A buffer spring 1010 is elastically connected between the surface of the buffer plate 109 and the X-shaped plate 102. Water entering the primary mixing cylinder 1 will hit the buffer plate 109. Through the left and right swaying of the buffer plate 109 and the buffering effect of the buffer spring 1010, the impact of the water flow can be reduced. Furthermore, the arrangement of the X-shaped plate 102 ensures that the water flow on both sides will not directly impact the primary mixing cylinder. Instead of flowing to the inner wall of the primary mixing cylinder 1, the water flows to the surface of the X-shaped plate 102 and is guided away by the water guide groove 106, thereby better protecting the primary mixing cylinder 1 and extending the overall service life of the system. The filter plate 101 can filter impurities in the hot and cold water, preventing impurities from being present in the mixed water and clogging the downstream pipes, which would be difficult to clean. Furthermore, by opening the end cover 2 and holding the buckle groove 105, the filter plate 101 and the X-shaped plate 102 can be easily removed as a whole, and the impurities on the filter plate 101 can be cleaned to ensure the filtration effect of the filter plate 101.

[0035] The stirring mechanism 11 includes a rotating shaft 111, and multiple rotating shafts 111 are uniformly rotatably connected to the inner wall of the remixing pipe. Stirring blades 112 are fixedly connected to the surface of the rotating shaft 111, and multiple stirring blades 112 are also provided. When the stirring mechanism 11 stirs the water after initial mixing, the rotating shaft 111 rotates continuously due to the impact of the water flow. As a result, the rotating shaft 111 drives the stirring blades 112 to stir continuously, thereby fully mixing the initially mixed water and improving the mixing effect of hot and cold water.

[0036] Working principle: When the heating network pipe is mixed, the first water valve 5 is opened first, and hot water is supplied to the interior of the primary mixing cylinder 1 through the water supply pipe 3. At the same time, cold water is supplied through the return water pipe 4, so that both hot and cold water enter the primary mixing cylinder 1 at the same time for preliminary mixing. Then, it enters the secondary mixing cylinder 7 through the connecting pipe 6 for secondary mixing, so that the hot and cold water are mixed more evenly. After mixing, the water is sprayed out through the second water valve 12 and the spray pipe 8. When spraying, it is diffused through the diffuser pipe 9 to increase the spray range. When the hot and cold water enter the primary mixing cylinder 1, the buffer filter mechanism 10 can filter the impurities in the hot and cold water and buffer the water flow entering the primary mixing cylinder 1 to prevent the water flow from directly impacting the inner wall of the primary mixing cylinder 1. Long-term impact of the water flow on the inner wall of the primary mixing cylinder 1 will damage it, thereby reducing the service life of the system. After the initial mixing, the water is stirred by the stirring mechanism 11, so that the hot and cold water are mixed more thoroughly and the mixing effect is better.

[0037] When the buffer filter mechanism 10 is in operation, the water entering the primary mixing cylinder 1 will hit the buffer plate 109. The impact of the water flow can be reduced by the left and right swaying of the buffer plate 109 and the buffering effect of the buffer spring 1010. The setting of the X-shaped plate 102 can prevent the water flow on both sides from directly impacting the inner wall of the primary mixing cylinder 1. Instead, it flows to the surface of the X-shaped plate 102 and is guided away by the water guide groove 106, thereby improving the protection of the primary mixing cylinder 1 and extending the overall service life of the system. The filter plate 101 can filter impurities in the hot and cold water to prevent impurities from being contained in the mixed water and clogging the downstream pipes, which is difficult to clean. By opening the end cover 2 and holding the buckle 105, the filter plate 101 and the X-shaped plate 102 can be easily removed as a whole and the impurities on the filter plate 101 can be cleaned to ensure the filtration effect of the filter plate 101.

[0038] When the water after initial mixing is stirred by the stirring mechanism 11, the impact of the water flow causes the rotating shaft 111 to rotate continuously. As a result, the rotating shaft 111 drives the stirring blade 112 to stir continuously, thereby fully mixing the water after initial mixing and improving the mixing effect of hot and cold water.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing device for a primary heating network, comprising a primary mixing cylinder (1), characterized in that: The top flange of the primary mixing cylinder (1) is connected to an end cap (2). A water supply pipe (3) is connected to one side of the primary mixing cylinder (1), and a return water pipe (4) is connected to the other side of the primary mixing cylinder (1). A first water valve (5) is fixedly installed on the surface of the water supply pipe (3) and the surface of the return water pipe (4). A connecting pipe (6) is connected to the bottom of the primary mixing cylinder (1). A remixing cylinder (7) is connected to one end of the connecting pipe (6). A spray pipe (8) is connected to one side of the remixing cylinder (7). A diffuser pipe (9) is connected to one end of the spray pipe (8). A buffer filter mechanism (10) is provided inside the primary mixing cylinder (1). A stirring mechanism (11) is provided inside the remixing cylinder (7). A second water valve (12) is fixedly installed on the surface of the spray pipe (8).

2. The mixing device for a primary heating network according to claim 1, characterized in that: The buffer filtration mechanism (10) includes a filter plate (101), and an X-shaped plate (102) is fixedly connected to the top of the filter plate (101).

3. A mixing device for a primary heating network according to claim 2, characterized in that: The four corners of the X-shaped plate (102) are fixedly connected with positioning strips (103), and the inner wall of the primary mixing cylinder (1) is provided with positioning grooves (104), and the positioning strips (103) are inserted into the interior of the positioning grooves (104).

4. A mixing device for a primary heating network according to claim 2, characterized in that: The X-shaped plate (102) has a buckle groove (105) on its front and back sides, and a water guide groove (106) on both sides of the X-shaped plate (102).

5. A mixing device for a primary heating network according to claim 2, characterized in that: The inner wall of the primary mixing cylinder (1) is fixedly connected to an annular sealing plate (107), and the filter plate (101) is placed on top of the annular sealing plate (107).

6. A mixing device for a primary heating network according to claim 2, characterized in that: The buffer filtering mechanism (10) further includes a rotating rod (108), which is rotatably connected to both sides of the X-shaped plate (102). A buffer plate (109) is fixedly connected to the surface of the rotating rod (108), and a buffer spring (1010) is elastically connected between the surface of the buffer plate (109) and the X-shaped plate (102).

7. A mixing device for a primary heating network according to claim 1, characterized in that: The stirring mechanism (11) includes a rotating shaft (111), and there are multiple rotating shafts (111). The multiple rotating shafts (111) are uniformly rotatably connected to the inner wall of the remixing cylinder (7). The surface of the rotating shaft (111) is fixedly connected with stirring blades (112), and there are multiple stirring blades (112).

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