CN218455251U - Low-resistance high-efficiency heating system - Google Patents
Low-resistance high-efficiency heating system Download PDFInfo
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- CN218455251U CN218455251U CN202222498422.9U CN202222498422U CN218455251U CN 218455251 U CN218455251 U CN 218455251U CN 202222498422 U CN202222498422 U CN 202222498422U CN 218455251 U CN218455251 U CN 218455251U
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Abstract
The utility model discloses a high-efficient heating system of low resistance belongs to heating equipment technical field, including heating heat source, pipe network delivery pipe, pipe network wet return and a plurality of user, a plurality of user connects in parallel between pipe network delivery pipe and pipe network wet return through the branch pipe respectively, be equipped with water admixing device on the branch pipe, water admixing device sets up in user's heat supply entrance point. The water mixing device is arranged on a user water supply pipe of a user to increase the flow of the water supply side of the user, so that the heat supply system can implement a low-temperature large-flow small-temperature-difference operation mode, and the heat supply requirement of the user can be met; the water mixing device is arranged on a water supply pipe of a user, so that the running power consumption of a direct supply system or an indirect supply secondary system circulating pump can be reduced, the running efficiency of the heat source side is indirectly improved, and the hydraulic stability of a heat supply network is improved; by improving the water supply pressure of the user, the heat supply requirement of the user can be met, and the aims of saving electricity and heat are fulfilled. The utility model discloses be particularly useful for central heating facility's technical field.
Description
Technical Field
The utility model belongs to the technical field of heating equipment, especially, relate to a high-efficient heating system of low resistance.
Background
At present, the existing heating system causes thermal unbalance due to the problems of different resistance of each part, complex conditions of end users and the like in the system operation process, the phenomena of large flow, small temperature difference and uneven cooling and heating of users commonly exist, the waste of electric energy of water circulation is huge, and the satisfaction degree of users is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-efficient heating system of low resistance aims at solving among the prior art heating system user side cold and hot inequality, the great technical problem of heating system hydrologic cycle power consumption.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
the utility model provides a low resistance high-efficient heating system, includes heating heat source, pipe network delivery pipe, pipe network wet return and a plurality of user, and a plurality of user connects in parallel between pipe network delivery pipe and pipe network wet return through the branch pipe respectively, be equipped with water admixing device on the branch pipe, water admixing device sets up in user's heat supply entrance point.
Preferably, the branch pipe comprises a user water supply pipe and a user water return pipe, the user water supply pipe is provided with a water mixing device, and an introduction port of the water mixing device is connected with the user water return pipe; the water mixing device is one or more water mixers which are connected in series on a user water supply pipe or connected in parallel on the user water supply pipe.
Preferably, the water mixer comprises a water mixing body and a nozzle, the water mixing body and the nozzle are of a split structure, an introducing chamber, a mixing chamber and a diffusion chamber are sequentially arranged in an inner cavity of the water mixing body from left to right, an inlet at the left end of the nozzle can be connected with a pipe network water supply pipe, the outer wall of the nozzle is hermetically connected with the side wall of one end of the introducing chamber, a conical section of the nozzle extends into the introducing chamber, and an outlet of the nozzle faces the inlet of the mixing chamber; the top of the introduction chamber is provided with an introduction port connected with a user water return pipe, the right side of the introduction chamber is a horn-shaped outlet connected with the mixing chamber, the mixing chamber is in a straight hole shape with the section smaller than that of the introduction chamber, the diffusion chamber is in a taper hole shape, and a large-diameter outlet at the right end of the diffusion chamber is communicated with a user water supply pipe.
Preferably, the outer wall of the middle part of the nozzle is provided with an installation platform, one end of the introducing chamber is provided with an installation hole matched with the installation platform, the installation platform is in threaded fit with the installation hole, a sealing groove for placing a sealing ring is arranged on the end face of the right side of the installation platform, and the end face of the right side of the installation platform is abutted against the bottom of the installation hole; the lateral wall of mounting hole is radially equipped with the stopping screw, the end of stopping screw and the excircle butt of mount table.
Preferably, the inner end face of the mounting table is provided with a limiting step, and the sealing groove is formed in the outer end face of the limiting step; the middle outer conical surface of the limiting step can be abutted against the inner wall of the mounting hole.
Preferably, a first wear-resistant layer is arranged on the inner wall of the outlet end of the cone section of the nozzle, the first wear-resistant layer is embedded in the inner wall of the cone section, and the inner wall of the first wear-resistant layer and the inner wall of the cone section are in the same cone; the left end of the first wear-resistant layer is a horn hole, the taper of the horn hole is consistent with that of the cone section, and the outlet of the right end of the horn hole is a straight hole.
Preferably, a second wear-resistant layer is arranged on the inner wall of the junction of the introducing chamber and the mixing chamber, the second wear-resistant layer comprises a taper hole part and a straight hole part, the inner wall of the taper hole part and the inner wall of the introducing chamber are in the same taper plane, and the inner wall of the straight hole part and the inner wall of the mixing chamber are in the same cylindrical plane; the taper of the trumpet-shaped outlet of the introducing chamber is larger than the taper of the cone section of the nozzle.
Preferably, the water mixing body and the nozzle are both made of reinforced nylon materials, and the first wear-resistant layer and the second wear-resistant layer are made of wear-resistant ceramic materials; the cone section of the nozzle and the first wear-resistant layer are integrally formed in an injection molding mode, and the water mixing body and the second wear-resistant layer are integrally formed in an injection molding mode; and annular teeth are arranged on the outer wall of the horn hole of the first wear-resistant layer and the outer wall of the second wear-resistant layer.
Preferably, the excircle of the inlet end of the introducing port of the water mixing body, the excircle of the inlet end of the nozzle and the excircle of the outlet end of the diffusion chamber of the water mixing body are provided with bosses with external threads.
Preferably, a dirt separator and a circulating pump are arranged on the pipe network water return pipe, a pipeline between the dirt separator and the circulating pump is connected with a water replenishing pipeline, a water replenishing pump is arranged on the water replenishing pipeline, and the water replenishing pipeline is connected with a water replenishing tank; valves are arranged at the front and the rear of the dirt separator, the circulating pump and the water replenishing pump; a bypass pipeline is further arranged on one side of the dirt separator, and a valve is arranged on the bypass pipeline; and the circulating pump and the water replenishing pump are connected in parallel.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the utility model discloses an installation water admixing device on the branch pipe leading to the user, increase the flow of user's water supply side, can make heating system carry out "the large-traffic little difference in temperature of low temperature" operational mode, can satisfy user's heat supply demand, realize that user's heat supply pressure is balanced. The water mixing device is arranged on a water supply pipe of a user, so that the running power consumption of a direct supply system or an indirect supply secondary system circulating pump can be reduced, the running efficiency of the heat source side is indirectly improved, and the hydraulic stability of a heat supply network is improved; by improving the water supply pressure of the user, the heat supply requirement of the user can be met, and the aims of saving electricity and heat are fulfilled. The utility model discloses be particularly useful for central heating facility's technical field.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a low-resistance high-efficiency heating system provided in embodiment 1 of the present invention;
fig. 2 is a schematic view of the arrangement of the mixing apparatus on the branch pipe in embodiment 2;
fig. 3 is a schematic view of the arrangement of the mixing apparatus on the branch pipe in embodiment 3;
fig. 4 is a schematic structural diagram of a water mixer according to an embodiment of the present invention;
fig. 5 is a schematic view of the mixer body of fig. 4;
FIG. 6 is a schematic view of the nozzle of FIG. 4;
FIG. 7 is a schematic view of the first wear layer of FIG. 6;
FIG. 8 is a schematic structural view of the second wear layer of FIG. 5;
FIG. 9 is a schematic view of a part of the structure of a return pipe of a pipe network according to another embodiment of the present invention;
in the figure: 100-pipe network water supply pipe, 200-pipe network water return pipe, 211-circulating pump, 212-dirt separator, 213-water replenishing pipeline, 214-water replenishing pump, 215-water replenishing tank and 220-bypass pipeline; 300-user, 400-branch pipe, 401-user water supply pipe, 402-user water return pipe; 600-a heating source;
500-water mixer: 1-water mixing body, 11-introducing chamber, 12-mixing chamber, 13-diffusion chamber, 14-backstop screw; 2-nozzle, 21-straight hole section, 22-taper hole section; 3-an introduction port, 4-an installation hole, 5-an installation platform, 6-a sealing ring, 7-a sealing groove, 8-a limiting step, 9-a first wear-resistant layer, 10-a second wear-resistant layer, 101-a straight hole part and 102-a cone part.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the 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 efforts all belong to the protection scope of the present invention.
Referring to fig. 1-3, the utility model provides a pair of high-efficient heating system of low resistance, including heating heat source 600, pipe network delivery pipe 100, pipe network wet return 200 and a plurality of user 300, a plurality of user 300 connects in parallel between pipe network delivery pipe 100 and pipe network wet return 200 through branch pipe 400 respectively, be equipped with water admixing device on the branch pipe 400, water admixing device sets up in user 300's heating entrance point. The branch pipe 400 comprises a user water supply pipe 401 and a user water return pipe 402, wherein a water mixing device is arranged on the user water supply pipe 401, and an introduction port of the water mixing device is connected with the user water return pipe 402; the water mixing device is one or more water mixers 500, and the plurality of water mixers 500 are connected in series with or in parallel with a user water supply pipe 401, as shown in fig. 1 to 3, which are installation schematic diagrams of the water mixing device in embodiments 1, 2 and 3, respectively. Wherein, the heating heat source 600 may adopt a boiler or a heat exchanger.
The pressure drop of the water supply pipe of the heat supply network can be reduced by installing the water mixer, the water pressure of the water supply side of a user is increased, the flow of the water return pipe of the heat supply network is reduced, and the water return pipe of the heat supply network is changed from large-flow small temperature difference into small-flow large temperature difference. Install a plurality of muddy wares additional in heating system, with the introduction of each muddy hydrophone and user's wet return intercommunication, the export and the user of muddy hydrophone end intercommunication of intaking increase hot user's water supply flow, make hot user's system carry out "large-traffic little difference in temperature of low temperature" operational mode. By adopting the scheme, the pressure drop of a heat supply network before the water mixer can be reduced, the pressure drop of a user is increased, the hydraulic stability of a heat supply system is greatly improved, the debugging is simple, and the anti-interference capability is strong; meanwhile, the phenomenon of uneven cooling and heating of the system in the hot user building is effectively relieved.
The utility model provides a heating system compares with traditional central heating system, has better energy-conservation nature and thermal comfort. The mixer 500 can be installed according to actual needs. In addition, in the operation process of the heating system, when the heating area or the heating users are increased, the number of the water mixing heat exchange stations is correspondingly increased, the control valve is installed at the inlet end of the water mixer, the pressure gauge is installed at the inlet end and the outlet end of the users, the control valve and the pressure gauge are both connected with the controller, the opening number of the control valve is controlled according to the difference of the inlet pressure and the outlet pressure of the users, the heating requirements of the users are further met, the operation power consumption of the circulating pump is reduced, and the hydraulic stability of a heat supply network is improved.
In a specific embodiment of the present invention, as shown in fig. 4, the water mixer 500 includes a water mixing body 1 and a nozzle 2, the water mixing body 1 and the nozzle 2 are of a split structure, the inner cavity of the water mixing body 1 is an introducing chamber 11, a mixing chamber 12 and a diffusion chamber 13 from left to right in sequence, an inlet of a left end straight hole section 21 of the nozzle 2 can be connected to a pipe network water supply pipe, an outer wall of the nozzle 2 is connected to a side wall of one end of the introducing chamber 11 in a sealing manner, a cone section 22 of the nozzle 2 extends into the introducing chamber 11, and an outlet of the nozzle 2 faces an inlet of the mixing chamber 12; the top of the introducing chamber 11 is provided with an introducing port 3 connected with a user water return pipe, and the right side of the introducing chamber is provided with a horn-shaped outlet connected with the mixing chamber 12, so that the water flow is guided conveniently; the mixing chamber 12 is a straight hole with a section smaller than that of the introducing chamber 11, the diffusion chamber 13 is a conical hole, and a large-diameter outlet at the right end of the diffusion chamber is communicated with a water supply pipe of a user. Utilize the nozzle to supply water with the pipe network high-speed spout to the mixing chamber, introduce indoor formation negative pressure under the rivers effect, introduce the room of introducing through the water of introducing the mouth with the user wet return, supply water with the pipe network afterwards and mix in the mixing chamber, the velocity of water obtains improving in the mixing chamber that the cross-section sharply subtracts, at last through the high-speed blowout of diffusion chamber, and then improve user's water supply pressure, realize satisfying the purpose of user's heat supply demand.
In a specific embodiment of the present invention, as shown in fig. 4, 5 and 7, the outer wall of the middle portion of the nozzle 2 is provided with a mounting table 5, one end of the introducing chamber 11 is provided with a mounting hole 4 for matching with the mounting table 5, the mounting table 5 is in threaded fit with the mounting hole 4, a sealing groove 7 for placing a sealing ring 6 is arranged on the right side end face of the mounting table 5, and the right side end face of the mounting table 5 is abutted against the bottom of the mounting hole 4; radial equipartition is equipped with a plurality of stopping screws 14 on the lateral wall of mounting hole 4, the terminal of stopping screw 14 and the excircle butt of mount table. The water mixing body is in threaded connection with the nozzle, so that the water mixing body is convenient to assemble, disassemble and maintain; meanwhile, the sealing performance and the connection firmness between the sealing ring and the retaining screw are improved by means of the sealing ring and the retaining screw.
As a preferable structure, as shown in fig. 7, a limit step 8 is provided on an inner end surface of the mount table 5, and the seal groove 7 is provided on an outer end surface of the limit step 8; the middle outer conical surface of the limiting step 8 can be abutted against the inner wall of the mounting hole 4. By adopting the structure, the sealing performance of the joint of the water mixing body and the nozzle can be ensured.
Further optimizing the technical scheme, as shown in fig. 7, the inner wall of the outlet end of the conical section 22 of the nozzle 2 is provided with a first wear-resistant layer 9. Utilize nozzle 2 to supply water with the pipe network to spout to mixing chamber 12 at a high speed, form the negative pressure in the suction chamber 11 under the rivers effect, introduce the water of user wet return 340 into suction chamber 11 through introducing mouth 3, supply water with the pipe network afterwards and mix in mixing chamber 12, the velocity of water is improved in mixing chamber 12 that the cross-section sharply reduces, at last through the high-speed blowout of diffusion chamber 13, and then improve user's water supply pressure, realize satisfying the purpose of user's heat supply demand. Meanwhile, the service life of the nozzle is prolonged by the first wear-resistant layer 9 on the inner wall of the outlet of the cone section 22, and the serious abrasion caused by continuous washing of the outlet of the nozzle by water flow is avoided.
During specific manufacturing, the first wear-resistant layer 9 is embedded in the inner wall of the cone section 22, and the inner wall of the first wear-resistant layer 9 and the inner wall of the cone section 22 are in the same cone surface, as shown in fig. 4, 7 and 8. The left end of the first wear-resistant layer 9 is a horn hole, the taper of the horn hole is consistent with that of the cone section 22, and the outlet at the right end of the horn hole is a straight hole.
Similarly, as shown in fig. 4 to 6, a second wear-resistant layer 10 is provided on an inner wall of a boundary between the introducing chamber 11 and the mixing chamber 12, the second wear-resistant layer 10 includes a tapered hole portion 101 and a straight hole portion 102, an inner wall of the tapered hole portion 101 and an inner wall of the introducing chamber 11 are in the same tapered plane, and an inner wall of the straight hole portion 102 and an inner wall of the mixing chamber 12 are in the same cylindrical plane; the trumpet outlet taper of the introduction chamber 11 is greater than the taper of the cone section 22 of the nozzle 2.
During specific manufacturing, the water mixing body 1 and the nozzle 2 are both made of reinforced nylon materials, the first wear-resistant layer 9 and the second wear-resistant layer 10 are made of wear-resistant ceramic materials or quenching-treated stainless steel or alloy structural steel materials, and the materials have good wear resistance and corrosion resistance and long service life; the cone section 22 of the nozzle 2 and the first wear-resistant layer 9 are integrally formed by injection molding, and the water mixing body 1 and the second wear-resistant layer 10 are integrally formed by injection molding. In fig. 5 and 7, the inner bore taper α of the conical section 22 of the nozzle 2, the inner bore taper β of the diffusion chamber 13, and the trumpet-shaped outlet taper γ of the suction chamber 11 may be selected to have an appropriate angle according to actual conditions.
Further optimizing the above technical solution, the outer wall of the horn hole of the first wear layer 9 and the outer wall of the second wear layer 10 are both provided with annular teeth, as shown in fig. 6 and 8. Adopt this structure can make first wearing layer and nozzle, second wearing layer and muddy water body firm in connection, avoid droing because of long-time water impact.
In an embodiment of the present invention, as shown in fig. 5, the inlet end excircle of the introducing port 3 of the mixer body 1, the inlet end excircle of the nozzle 2, and the outlet end excircle of the diffusion chamber 13 of the mixer body 1 are provided with bosses having external threads. Adopt this structure convenience quick loading and unloading this muddy hydrophone in the work progress, construction convenience is swift, and work efficiency is high.
The operation principle of the water mixer with the structure is as follows:
the high-temperature water entering the water mixer from the pipe network water supply pipe is ejected out from the nozzle at a high speed under the pressure action of the high-temperature water, enters the suction chamber, increases the kinetic energy, reduces the pressure and forms a low-pressure area, and because the pressure at the outlet of the nozzle is lower than the pressure at the inlet of the suction chamber, a part of backwater of the household backwater pipe can be sucked and enters the mixing chamber together. The two fluids are heat energy exchanged and kinetic energy exchanged in the mixing chamber to make the temperature and speed of the two mixed fluids consistent and then enter the diffusion chamber. In a divergent diffusion chamber, the flow rate of the mixed water is gradually reduced and the pressure is gradually increased, and the mixed water is delivered to the user when the pressure is increased enough to overcome the resistance of the user. The water mixer has the following advantages:
(1) No power supply is needed, and no electric leakage and electric shock hidden danger exist; (2) no vibration and noise are generated, and people are not disturbed; (3) the structure is simple and compact, and the installation is convenient; (4) totally closed and no leakage; (5) no moving part exists, and the work is reliable; (6) different water supply temperatures can be provided; (7) spare parts and maintenance are not needed; (8) the service life can reach 20 years.
In an embodiment of the present invention, as shown in fig. 9, a circulation pump 211 and a dirt separator 212 are disposed on the pipe network water return pipe 200, a pipeline between the dirt separator 212 and the circulation pump 211 is connected to a water replenishing pipeline 213, a water replenishing pump 214 is disposed on the water replenishing pipeline 213, and the water replenishing pipeline 213 is connected to a water replenishing tank 215; valves are arranged at the front and the rear of the dirt separator 212, the circulating pump 211 and the water replenishing pump 214; a bypass pipeline 220 is further arranged on one side of the dirt separator 212, and a valve is arranged on the bypass pipeline 220; the circulating pump 211 and the water replenishing pump 214 are connected in parallel. The pipe network is cleaned regularly by the dirt separator 212, so that the running resistance of a heating system can be reduced; in the operation process, the circulating pump 211 and the water replenishing pump 214 are used and used, so that the normal operation of the heating system can be ensured while the equipment is maintained. Because the heat supply system has loss in the operation process, the water lost by the heat supply system is supplemented in time through the water supplementing pump, and the normal operation of the heat supply system is ensured.
In summary, by combining the three operation modes of the embodiments 1 to 3, the pressure on the water inlet side of a user can be increased by adding the water mixer, so that the heating requirement can be met. When the heating area or the hot user increase, increase the quantity of muddy hydrophone or change muddy mounting means of hydrophone correspondingly, it is nimble convenient to use. The utility model has the advantages of simple structure is compact, the heat supply is effectual, and this water mixer's long service life, processing simple manufacture are convenient, can improve the water pressure of user's heat supply. Adopt the utility model discloses a water mixer can reduce the operation power consumption that directly supplies the system or supplies secondary system circulating pump within a definite time, indirectly improves the operating efficiency on heat supply side, has improved heat supply network hydraulic stability, has guaranteed heating system's heating power equilibrium, satisfies user's heat supply demand, improves user's heat supply satisfaction, reaches economize on electricity, the purpose of festival heat. The utility model discloses be particularly useful for central heating system.
In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, other ways of implementing the invention may be devised different from those described herein, and similar developments may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A low resistance high efficiency heating system which is characterized in that: including heating heat source, pipe network delivery pipe, pipe network wet return and a plurality of user, a plurality of user connects in parallel between pipe network delivery pipe and pipe network wet return through the branch pipe respectively, be equipped with water admixing device on the branch pipe, water admixing device sets up in user's heat supply entrance point.
2. The low resistance high efficiency heating system according to claim 1, wherein: the branch pipe comprises a user water supply pipe and a user water return pipe, a water mixing device is arranged on the user water supply pipe, and an introduction port of the water mixing device is connected with the user water return pipe; the water mixing device is one or more water mixers which are connected in series on a user water supply pipe or connected in parallel on the user water supply pipe.
3. The low resistance high efficiency heating system according to claim 2, wherein: the water mixer comprises a water mixing body and a nozzle, wherein the water mixing body and the nozzle are of a split structure, an introducing chamber, a mixing chamber and a diffusion chamber are sequentially arranged in an inner cavity of the water mixing body from left to right, an inlet at the left end of the nozzle can be connected with a pipe network water supply pipe, the outer wall of the nozzle is hermetically connected with the side wall of one end of the introducing chamber, a conical section of the nozzle extends into the introducing chamber, and an outlet of the nozzle faces the inlet of the mixing chamber; the top of the introduction chamber is provided with an introduction port connected with a user return pipe, the right side of the introduction chamber is a horn-shaped outlet connected with the mixing chamber, the mixing chamber is in a straight hole shape with the section smaller than that of the introduction chamber, the diffusion chamber is in a taper hole shape, and a large-diameter outlet at the right end of the diffusion chamber is communicated with a user water supply pipe.
4. The low resistance high efficiency heating system according to claim 3, wherein: the outer wall of the middle of the nozzle is provided with an installation platform, one end of the introducing chamber is provided with an installation hole matched with the installation platform, the installation platform is in threaded fit with the installation hole, a sealing groove used for placing a sealing ring is formed in the end face of the right side of the installation platform, and the end face of the right side of the installation platform is abutted to the bottom of the installation hole; the lateral wall of mounting hole is radially equipped with the stopping screw, the end of stopping screw and the excircle butt of mount table.
5. The low resistance high efficiency heating system according to claim 4, wherein: the inner end face of the mounting table is provided with a limiting step, and the sealing groove is arranged on the outer end face of the limiting step; the middle outer conical surface of the limiting step can be abutted to the inner wall of the mounting hole.
6. The low resistance high efficiency heating system according to claim 3, wherein: the inner wall of the outlet end of the cone section of the nozzle is provided with a first wear-resistant layer, the first wear-resistant layer is embedded in the inner wall of the cone section, and the inner wall of the first wear-resistant layer and the inner wall of the cone section are in the same cone surface; the left end of the first wear-resistant layer is a horn hole, the taper of the horn hole is consistent with that of the cone section, and the outlet of the right end of the horn hole is a straight hole.
7. The low resistance high efficiency heating system according to claim 6, wherein: a second wear-resistant layer is arranged on the inner wall of the junction of the introducing chamber and the mixing chamber, the second wear-resistant layer comprises a taper hole part and a straight hole part, the inner wall of the taper hole part and the inner wall of the introducing chamber are in the same taper plane, and the inner wall of the straight hole part and the inner wall of the mixing chamber are in the same cylindrical plane; the taper of the trumpet-shaped outlet of the introducing chamber is larger than the taper of the cone section of the nozzle.
8. The low resistance high efficiency heating system according to claim 7, wherein: the water mixing body and the nozzle are both made of reinforced nylon materials, and the first wear-resistant layer and the second wear-resistant layer are made of wear-resistant ceramic materials; the cone section of the nozzle and the first wear-resistant layer are integrally formed in an injection molding mode, and the water mixing body and the second wear-resistant layer are integrally formed in an injection molding mode; and annular teeth are arranged on the outer wall of the horn hole of the first wear-resistant layer and the outer wall of the second wear-resistant layer.
9. The low resistance high efficiency heating system according to claim 3, wherein: bosses with external threads are arranged on the excircle of the inlet end of the introducing opening of the water mixing body, the excircle of the inlet end of the nozzle and the excircle of the outlet end of the diffusion chamber of the water mixing body.
10. The low resistance high efficiency heating system according to any one of claims 1 to 9, wherein: a dirt separator and a circulating pump are arranged on the pipe network water return pipe, a pipeline between the dirt separator and the circulating pump is connected with a water replenishing pipeline, a water replenishing pump is arranged on the water replenishing pipeline, and the water replenishing pipeline is connected with a water replenishing tank; valves are arranged at the front and the rear of the dirt separator, the circulating pump and the water replenishing pump; a bypass pipeline is further arranged on one side of the dirt separator, and a valve is arranged on the bypass pipeline; and the circulating pump and the water replenishing pump are connected in parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222498422.9U CN218455251U (en) | 2022-09-21 | 2022-09-21 | Low-resistance high-efficiency heating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222498422.9U CN218455251U (en) | 2022-09-21 | 2022-09-21 | Low-resistance high-efficiency heating system |
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| CN218455251U true CN218455251U (en) | 2023-02-07 |
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| CN202222498422.9U Active CN218455251U (en) | 2022-09-21 | 2022-09-21 | Low-resistance high-efficiency heating system |
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