CN108916966B - Independent miniature water pump water knockout drum and pipe-in-pipe geothermal circulation system - Google Patents
Independent miniature water pump water knockout drum and pipe-in-pipe geothermal circulation system Download PDFInfo
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- CN108916966B CN108916966B CN201811082671.1A CN201811082671A CN108916966B CN 108916966 B CN108916966 B CN 108916966B CN 201811082671 A CN201811082671 A CN 201811082671A CN 108916966 B CN108916966 B CN 108916966B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 238
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- 239000012943 hotmelt Substances 0.000 claims 1
- 125000003003 spiro group Chemical group 0.000 claims 1
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- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
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- 239000003351 stiffener Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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- 239000011152 fibreglass Substances 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
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- 230000003000 nontoxic effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
- F24D3/14—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Domestic Plumbing Installations (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention belongs to the technical field of geothermal circulating systems, in particular to an independent miniature water pump water distributor and a pipe-in-pipe geothermal circulating system, wherein a plurality of pipe-in-pipe branch modules are arranged on a water distributor main body, each pipe-in-pipe branch module comprises a pipe-in-pipe mounting seat and a miniature water pump, a liquid inlet channel communicated with a liquid inlet cavity and a pipe-in-pipe inner pipe and a backflow channel communicated with a liquid inlet end of the miniature water pump and a pipe-in-pipe outer pipe are arranged in each pipe-in-pipe mounting seat, and a liquid outlet end of the miniature water pump is communicated with the backflow cavity. The invention realizes independent grouping operation of pipe branch modules in pipes, caters to the current popular modular blocking concept, and each branch is controlled by a separate miniature water pump to distinguish frequently used areas and infrequently used areas.
Description
Technical Field
The invention belongs to the technical field of geothermal circulating systems, and particularly relates to an independent miniature water pump water separator and a pipe-in-pipe geothermal circulating system.
Background
In the technical field of geothermal systems, geothermal systems are mainly divided into low-temperature hot water ground radiation heating water geothermal and heating cable ground radiation heating electric geothermal according to different heating modes. The low-temperature hot water ground radiation heating is a heating mode that hot water with the temperature not higher than 60 ℃ is taken as a heating medium, circularly flows in a heating pipe, heats the floor, and supplies heat to the indoor through the ground in a radiation and convection heat transfer mode.
At present, the existing water-ground heat cycle has the following defects:
1. the traditional geothermal water circulation system structure is as follows: the water heater is connected with the traditional water separator through the large water pump, and pipes are distributed to all rooms through the water separator, so that only one room needs to be heated, and the large water pump needs to work, thereby wasting resources very much. When the large water pump works continuously every day, the failure rate and the maintenance cost of the water pump are easy to increase. In addition, a control switch is required to be installed on a pipeline of each room separately, and the cost is relatively high.
2. Because the water inlet pipe and the water return pipe are separately separated, the geothermal pipelines are particularly large, the layout is difficult, if the rooms are special-shaped, double pipes are particularly difficult to wind, and the installation space is relatively large. For example: there are six houses, at least 12 tubes are required.
3. The pipeline is heated unevenly, the pipeline is hotter just entering the floor, the return water end of the pipeline is unheated, the temperature difference between adjacent pipes is larger, and the comfort is reduced. In addition, this can lead to deformation of the ground and even cracking.
4. Some heat sources are relatively hot, and particularly, a water mixing valve is needed to be added to a heat source for supplying heat to an urban pipe network, so that the installation cost is increased.
Disclosure of Invention
The invention aims to provide the independent miniature water pump water separator which has a simple structure, is convenient to assemble, disassemble and maintain and can independently operate in groups, and the geothermal circulating system of the pipe in the pipe.
The purpose of the invention is realized in the following way:
an independent miniature water pump water knockout drum, includes hollow water knockout drum main part, the inside baffle that is provided with of water knockout drum main part, the baffle is cut apart water knockout drum main part inner chamber into feed liquor chamber and backward flow chamber.
The water knockout drum is characterized in that a plurality of pipe-in-pipe branch modules are arranged on the water knockout drum main body, each pipe-in-pipe branch module comprises a pipe-in-pipe mounting seat which is arranged on the water knockout drum main body where the liquid inlet cavity is located and used for connecting the pipe-in-pipe, and a miniature water pump which is arranged on the water knockout drum main body where the reflux cavity is located and used for driving internal liquid to flow, a liquid inlet channel which is communicated with the liquid inlet cavity and the pipe-in-pipe inner pipe and a reflux channel which is communicated with the liquid inlet end of the miniature water pump and the pipe-in-pipe outer pipe are arranged in the pipe-in-pipe mounting seat, and the liquid outlet end of the miniature water pump is communicated with the reflux cavity.
Preferably, the water separator body and the separator are integrally formed through an extrusion process.
Preferably, a first threaded hole is formed in the water distributor main body where the liquid inlet cavity is formed, the first threaded hole is internally and in threaded connection with the pipe-in-pipe installation seat, a threaded part or a clamping part or a hot melting part for connecting the pipe-in-pipe is arranged at the outer end of the pipe-in-pipe installation seat, a connecting end with a backflow channel extends at the inner end of the pipe-in-pipe installation seat, and the other end of the connecting end is arranged in a through hole of the partition plate in a sealing manner, so that the backflow channel is communicated with the liquid inlet end of the miniature water pump.
Preferably, the main reflux hole is formed in the connecting end, the main liquid inlet hole for connecting the inner pipe of the middle pipe, a plurality of liquid inlet holes for communicating the main liquid inlet hole with the liquid inlet cavity and a plurality of reflux holes for communicating the main reflux hole with the outer pipe of the middle pipe are formed in the middle pipe mounting seat, and the liquid inlet holes and the reflux holes are distributed on the middle pipe mounting seat in a staggered manner.
Preferably, the outer end of the pipe-in-pipe mounting seat is fixed with a pipe-in-pipe joint A through a clamping nut A, the pipe-in-pipe joint A comprises an outer pipe joint A, an inner pipe joint A and a plurality of joint connecting ribs A for connecting the outer pipe joint A and the inner pipe joint A, one end of the outer pipe joint A is provided with a clamping convex ring A which is matched with the clamping nut A, and the other end of the outer pipe joint A is provided with a hot melting part for connecting the pipe-in-pipe.
Preferably, one end of the water separator main body is provided with a left end cover A which is respectively communicated with the heat source liquid outlet end and the heat source reflux end, the other end of the water separator main body is provided with a right end cover A which is respectively sealed with the liquid inlet cavity and the reflux cavity through sealing gaskets, and the left end cover A comprises an end cover inner pipe which is communicated with the heat source liquid outlet end and the liquid inlet cavity and an end cover outer pipe which is communicated with the heat source reflux end and the reflux cavity.
Or, one end of the water separator main body is provided with a left end cover B which is communicated with the heat source liquid outlet end and the liquid inlet cavity and seals the reflux cavity, and the other end of the water separator main body is provided with a right end cover B which is communicated with the heat source reflux end and the reflux cavity and seals the liquid inlet cavity.
Preferably, a check valve is arranged inside the miniature water pump; a drain valve is arranged on the water knockout drum main body where the liquid inlet cavity is arranged; an automatic exhaust valve is arranged on the water separator main body where the backflow cavity is located.
The geothermal circulating system comprises a heat source, a geothermal pipe and the independent miniature water pump water separator, wherein the liquid outlet end of the heat source is communicated with the liquid inlet cavity of the water separator main body, and the heat source reflux end of the heat source is communicated with the reflux cavity of the water separator main body.
The outer end of the pipe-in-pipe mounting seat is connected with a geothermal pipe-in-pipe, the geothermal pipe-in-pipe comprises a geothermal outer pipe with a heat conduction function and a geothermal inner pipe with a heat insulation function, the geothermal inner pipe is coaxially arranged in the geothermal outer pipe through at least one geothermal reinforcing rib, a hot water flow passage is arranged in the geothermal inner pipe, a backwater flow passage is arranged in the geothermal outer pipe, the cross section area of the hot water flow passage is equal to the cross section area of the backwater flow passage, the temperature in the hot water flow passage can be conducted into the backwater flow passage through the geothermal inner pipe, and the temperature of the backwater flow passage is balanced.
Preferably, when the left end cover A which is respectively communicated with the heat source liquid outlet end and the heat source reflux end is arranged at one end of the water distributor main body, an initial joint and a hot water pipe middle pipe are arranged between the heat source and the left end cover A.
The starting joint comprises a starting joint main body, wherein a starting joint liquid inlet end connected with a heat source liquid outlet end, a starting joint connecting end connected with a heat preservation pipeline and a starting joint liquid outlet end connected with a heat source reflux end are respectively arranged on the joint main body, the starting joint main body consists of a starting joint inner pipe and a starting joint outer pipe, a starting joint inner pipe is arranged between the starting joint liquid inlet end and the starting joint connecting end, and the starting joint liquid outlet end is communicated with an inner cavity of the starting joint outer pipe.
The hot water pipe middle pipe comprises a hot water outer pipe and a hot water inner pipe with a heat insulation function, the hot water inner pipe is coaxially arranged in the hot water outer pipe through at least one geothermal reinforcing rib, a hot water flow passage is arranged in the hot water inner pipe, and a backwater flow passage is arranged in the hot water outer pipe.
Preferably, a pipe-in-pipe mounting seat of the independent miniature water pump water separator is sequentially provided with a pipe-in-pipe, an initial connector and a towel rack radiator or a geothermal small pipe.
Compared with the prior art, the invention has the following outstanding and beneficial technical effects:
1. the invention realizes independent grouping operation of pipe branch modules in pipes, caters to the current popular modular blocking concept, and each branch is controlled by a separate miniature water pump to distinguish frequently used areas and infrequently used areas.
2. In the aspect of manufacturing, the water knockout drum main body is manufactured by the extrusion die, the length can be cut at will according to the required number of pipe branch modules in the pipe, the investment of dies with different specifications is reduced, and the cost is saved.
3. The invention designs a geothermal pipe middle pipe for a geothermal circulating system, which is characterized in that a geothermal outer pipe dissipates heat, a geothermal inner pipe preserves heat, the sectional area of a hot water flow passage is equal to that of a return water flow passage, so that the liquid inlet amount and the liquid outlet amount are kept consistent, and the pressure fluctuation of a pipeline is reduced. Because the geothermal inner tube is not absolutely insulating, and the temperature in the hot water flow channel can be conducted into the backwater flow channel through the geothermal inner tube. In general, the liquid inlet end temperature T1 of the geothermal inner pipe is greater than the liquid outlet end temperature T2 of the geothermal inner pipe, the liquid inlet end temperature T3 of the geothermal outer pipe is greater than the liquid outlet end temperature T4 of the geothermal outer pipe, and for the pipe-in-pipe pipeline, the liquid inlet end temperature T1 of the geothermal inner pipe and the liquid outlet end temperature T4 of the geothermal outer pipe at the same position can conduct heat, because the larger the temperature difference is, the more heat is conducted, the liquid inlet end of the geothermal inner pipe conducts heat in a unit area, the heat conduction can ensure that the temperature of the T4 is approximately equal to the temperature of the T3, and the other places of the geothermal outer pipe are the same, so that the effect of balancing the temperature of a backwater flow passage is achieved. Through the self-balancing, the effect of a water mixing valve in a traditional geothermal system is replaced, the temperature of each place of a room is guaranteed to be equal, and the temperature of the whole room can be controlled within a certain range. The situation that local heat and local cold occur in the traditional geothermal circulating system is avoided (because the water return pipe and the water inlet pipe are in cross circulation layout, the temperature of the floor where the water return pipe is located is lower, the temperature of the floor where the water inlet pipe is located is relatively higher, and because the situation that local heat and local cold occur), and the comfort of people is greatly improved.
4. The water separator is generally arranged in the central area of the whole house, and the heat source is not generally arranged in the central area, such as a solar water heater is arranged on a roof.
Drawings
Fig. 1 is a cross-sectional view of a first embodiment of a water separator.
Fig. 2 is a cross-sectional view of the pipe-in-pipe branching module at A-A in fig. 1.
Fig. 3 is a cross-sectional view of the tube-in-tube mount at B-B in fig. 2.
Fig. 4 is a cross-sectional view of a second embodiment of a water separator.
Fig. 5 is a cross-sectional view of a third embodiment of a water separator.
Fig. 6 is a cross-sectional view of a fourth embodiment of a water separator.
Fig. 7 is a schematic view of a geothermal circulation system to which the first type of water separator is applied.
Fig. 8 is an enlarged view of a portion of the starter joint at C in fig. 7.
Fig. 9 is a cross-sectional view of a tube in a hot water tube.
Fig. 10 is a cross-sectional view of a tube in the geothermal pipe.
Fig. 11 is an enlarged view of a portion of the starter joint at D in fig. 7.
Fig. 12 is a schematic view of a geothermal circulation system to which a second type of water separator is applied.
Fig. 13 is an enlarged view of a portion of the starter joint at E in fig. 12.
Fig. 14 is a schematic structural view of a second towel rack heat sink.
The meaning indicated by the reference numerals in the figures:
1-a water separator body; 2-a tube-in-tube mount; 3-a miniature water pump; 4 a-left end cap a; 4B-left end cap B;5 a-right end cap a; 5B-right end cap B; 6-draining valve; 7-an automatic exhaust valve; 8-a heat source; 9-a towel rack radiator; 10-geothermal tubules;
11-a separator; 12-a liquid inlet cavity; 13-a reflow chamber;
21-a liquid inlet channel; 22-main liquid inlet; 23-a liquid inlet small hole; 24-a return channel; 25-a main reflow aperture; 26-a reflow aperture;
31-clamping a nut A; 32-pipe-in-pipe joint a;
40-a geothermal pipe middle pipe; 41-geothermal outer pipe; 42-geothermal inner pipe; 43-geothermal stiffener; 44-pipe cap;
50-a hot water pipe middle pipe; 51-a hot water outer tube; 52-a hot water inner tube; 53-hot water reinforcing ribs;
81-a heat source liquid outlet end; 82-a heat source return end; 83-a hot water flow path; 84-backwater flow passage;
300-initial linker; 301-an initial linker body; 302-the initial connector liquid inlet end; 303-an initial connector connection end; 304-the liquid outlet end of the initial joint; 305-starting joint inner tube; 306-starting joint outer tube.
Detailed Description
The invention is further described with reference to the following specific examples:
independent miniature water pump water knockout drum:
as shown in fig. 1-3, an independent miniature water pump water separator comprises a hollow water separator main body 1, wherein a partition plate 11 is arranged in the water separator main body 1, and the partition plate 11 divides the inner cavity of the water separator main body 1 into a liquid inlet cavity 12 and a backflow cavity 13.
The water knockout drum is characterized in that a plurality of pipe-in-pipe branch modules for controlling the internal circulation of liquid are arranged on the water knockout drum main body 1, each pipe-in-pipe branch module comprises a pipe-in-pipe installation seat 2 which is installed on the water knockout drum main body 1 where the liquid inlet cavity 12 is located and used for connecting a pipe in the pipe, and a miniature water pump 3 which is installed on the water knockout drum main body 1 where the reflux cavity 13 is located and used for driving internal liquid to flow, the low-temperature water in the reflux cavity 13 is generally used for the reflux cavity 13, the miniature water pump 3 is installed in the reflux cavity 13 and is not easy to generate heat, and the working efficiency and the service life are increased.
The pipe-in-pipe mounting seat 2 is internally provided with a liquid inlet channel 21 which is communicated with the liquid inlet cavity 12 and the pipe-in-pipe inner pipe and a backflow channel 24 which is communicated with the liquid inlet end of the miniature water pump 3 and the pipe-in-pipe outer pipe, and the liquid outlet end of the miniature water pump 3 is communicated with the backflow cavity 13.
In the invention, in a normal state, one micro motor 3 of the pipe-in-pipe branch module controls the heat supply of one room, the rooms are not mutually influenced, the fault rate of the micro water pump is greatly reduced along with the switching mode, and the use feeling of a user can be better ensured.
The independent grouping operation of the pipe-in-pipe branch modules caters to the current popular modular blocking concept, and each branch is controlled by an independent miniature water pump to distinguish frequently used areas and infrequently used areas.
The miniature water pump is low-voltage direct-current adjustable speed type, and the flow of the miniature water pump is controlled through the intelligent terminal to achieve a constant temperature effect. In addition, the miniature water pump directly replaces the traditional actuator, reduces intermediate links, enables the system to be more stable, and simultaneously saves cost to a certain extent.
Preferably, the water separator body 1 and the partition 11 are integrally formed through an extrusion process. In terms of manufacturing, the water separator main body 1 is manufactured by using the extrusion die, the length can be cut at will according to the required number of pipe branch modules in the pipe, the investment of dies with different specifications is reduced, and the cost is saved.
Preferably, the water knockout drum main body 1 where the liquid inlet cavity 12 is located is provided with a first threaded hole, and the first threaded hole is internally and in threaded connection with the pipe-in-pipe mounting seat 2, so that the processing and the mounting are convenient. The outer end of the pipe-in-pipe mounting seat 2 is provided with a threaded part or a clamping part or a hot melting part for connecting the pipe or the pipe joint, the inner end of the pipe-in-pipe mounting seat 2 is extended with a connecting end with a backflow channel 24, the other end of the connecting end is sealed in a through hole of the partition plate 11, the backflow channel 24 is communicated with the liquid inlet end of the micro water pump 3, and the liquid inlet end of the micro water pump 3 is also sealed in the through hole of the partition plate 11.
Preferably, the axis of the miniature water pump 3 and the axis of the connecting end form an angle gamma, which is in the range of 90-180 degrees, so as to better adapt to different installation environments of the water separator. As shown in fig. 4-5, two and three embodiments of the water separator are shown, one gamma being 135 deg. and the other gamma being 90 deg..
Preferably, the main backflow hole 25 is provided in the connection end, the pipe-in-pipe mounting seat 2 is provided with a main liquid inlet hole 22 for connecting the pipe-in-pipe inner pipe, a plurality of liquid inlet holes 23 for communicating the main liquid inlet hole 22 with the liquid inlet cavity 12, and a plurality of backflow holes 26 for communicating the main backflow hole 25 with the pipe-in-pipe outer pipe, and the liquid inlet holes 23 and the backflow holes 26 are distributed on the pipe-in-pipe mounting seat 2 in a staggered manner. The main liquid inlet hole 22 and the plurality of liquid inlet small holes 23 form a liquid inlet channel 21, and the main backflow hole 25 and the plurality of backflow small holes 26 form a backflow channel 24. In the pipe-in-pipe mounting seat 2, 5 liquid inlet small holes 23 and backflow small holes 26 are respectively designed, the sectional area of all the liquid inlet small holes 23 is equal to the sectional area of the inner pipe of the pipe-in-pipe, and the structure is compact on the premise of not affecting the liquid inlet efficiency. Similarly, the cross-sectional area of all of the return apertures 26 is equal to the cross-sectional area of the tube-in-tube outer tube.
Preferably, the outer end of the pipe-in-pipe mounting seat 2 is fixed with a pipe-in-pipe joint A32 for connecting the pipe-in-pipe through a clamping nut A31, the pipe-in-pipe joint A32 comprises an outer pipe joint A, an inner pipe joint A and a plurality of joint connecting ribs A for connecting the outer pipe joint A and the inner pipe joint A, one end of the outer pipe joint A is provided with a clamping convex ring A matched with the clamping nut A31, and the other end of the outer pipe joint A is provided with a hot melting part for connecting the pipe-in-pipe. The pipe-in-pipe joint A32 is convenient for connecting the geothermal pipe-in-pipe.
Preferably, as shown in fig. 1, one end of the water separator body 1 is provided with a left end cover A4a which is respectively communicated with the heat source liquid outlet end 81 and the heat source backflow end 82, the other end of the water separator body is provided with a right end cover A5a which is respectively sealed with the liquid inlet cavity 12 and the backflow cavity 13 through a sealing gasket, and the left end cover A4a comprises an end cover inner pipe which is communicated with the heat source liquid outlet end 81 and the liquid inlet cavity 12 and an end cover outer pipe which is communicated with the heat source backflow end 82 and the backflow cavity 13;
alternatively, as shown in fig. 6, in the fourth embodiment of the water separator, one end of the water separator body 1 is provided with a left end cover B4B that communicates the heat source outlet end 81 with the inlet chamber 12 and seals the return chamber 13, and the other end is provided with a right end cover B5B that communicates the heat source return end 82 with the return chamber 13 and seals the inlet chamber 12.
Preferably, a check valve for preventing liquid from flowing back is arranged inside the miniature water pump 3, so that internal liquid is prevented from flowing back.
The water separator body 1 with the liquid inlet cavity 12 is provided with a drain valve 6, and the water separator body 1 with the backflow cavity 13 is provided with an automatic exhaust valve 7.
A pipe-in-pipe geothermal circulation system:
circulation system embodiment one: the present embodiment employs the water separator structure of the first embodiment.
As shown in fig. 7, a pipe-in-pipe geothermal circulation system comprises a heat source 8, a geothermal pipe 40 and the independent miniature water pump water separator, wherein a heat source liquid outlet 81 of the heat source 8 is communicated with a liquid inlet cavity 12 of the water separator main body 1, and a heat source backflow 82 of the heat source 8 is communicated with a backflow cavity 13 of the water separator main body 1; the heat source 8 is typically an electric water heater or a solar water heater or a gas water heater.
As shown in fig. 10, the outer end of the pipe-in-pipe mounting seat 2 is connected with a geothermal pipe-in-pipe 40, the other end of the geothermal pipe-in-pipe 40 is provided with a pipe cap 44, the geothermal pipe-in-pipe 40 comprises a geothermal outer pipe 41 with a heat conduction function and a geothermal inner pipe 42 with a heat insulation function, the geothermal inner pipe 42 is coaxially arranged in the geothermal outer pipe 41 through at least one geothermal reinforcing rib 43, a hot water runner 83 is arranged in the geothermal inner pipe 42, a backwater runner 84 is arranged in the geothermal outer pipe 41, the cross section area of the hot water runner 83 is equal to the cross section area of the backwater runner 84, and the temperature in the hot water runner 83 can be conducted into the backwater runner 84 through the geothermal inner pipe 42 to balance the temperature of the backwater runner 84. The geothermal reinforcing ribs 43 of the present invention are not easily excessive because the pipes are coiled in the geothermal circulation system, and the more the geothermal reinforcing ribs 43 are, the greater the strength, the less easy the installation, and thus the number is generally 1 or 2.
Preferably, the materials of the geothermal outer pipe 41 and the geothermal inner pipe 42 are PERT or PB, and hollow glass beads or plastic foaming agent is added into the material of the geothermal inner pipe 42, so that the heat conductivity coefficient is controlled to be 0.1w/mK-0.44w/mK, and the pipeline length is in direct proportion to the heat conductivity coefficient.
The invention designs a geothermal pipe middle pipe for a geothermal circulating system, which is characterized in that a geothermal outer pipe dissipates heat, a geothermal inner pipe preserves heat, the sectional area of a hot water flow passage is equal to that of a return water flow passage, so that the liquid inlet amount and the liquid outlet amount are kept consistent, and the pressure fluctuation of a pipeline is reduced. Because the geothermal inner tube is not absolutely insulating, and the temperature in the hot water flow channel can be conducted into the backwater flow channel through the geothermal inner tube. In general, the liquid inlet end temperature T1 of the geothermal inner pipe is greater than the liquid outlet end temperature T2 of the geothermal inner pipe, the liquid inlet end temperature T3 of the geothermal outer pipe is greater than the liquid outlet end temperature T4 of the geothermal outer pipe, and for the pipe-in-pipe pipeline, the liquid inlet end temperature T1 of the geothermal inner pipe and the liquid outlet end temperature T4 of the geothermal outer pipe at the same position can conduct heat, because the larger the temperature difference is, the more heat is conducted, the liquid inlet end of the geothermal inner pipe conducts heat in a unit area, the heat conduction can ensure that the temperature of the T4 is approximately equal to the temperature of the T3, and the other places of the geothermal outer pipe are the same, so that the effect of balancing the temperature of a backwater flow passage is achieved. Through the self-balancing, the effect of a water mixing valve in a traditional geothermal system is replaced, the temperature of each place of a room is guaranteed to be equal, and the temperature of the whole room can be controlled within a certain range. The situation that local heat and local cold occur in the traditional geothermal circulating system is avoided (because the water return pipe and the water inlet pipe are in cross circulation layout, the temperature of the floor where the water return pipe is located is lower, the temperature of the floor where the water inlet pipe is located is relatively higher, and because the situation that local heat and local cold occur), and the comfort of people is greatly improved.
Preferably, when the left end cap A4a which is respectively communicated with the heat source liquid outlet end 81 and the heat source reflux end 82 is arranged at one end of the water distributor main body 1, an initial joint 300 and the hot water pipe-in-pipe 50 are arranged between the heat source 8 and the left end cap A4a,
as shown in fig. 8, the starting joint 300 includes a starting joint main body 301, a starting joint liquid inlet end 302 connected to the heat source liquid outlet end 81, a starting joint connection end 303 connected to the heat preservation pipeline, and a starting joint liquid outlet end 304 connected to the heat source return end 82 are respectively disposed on the joint main body 301, the starting joint main body 301 is composed of a starting joint inner pipe 305 and a starting joint outer pipe 306, a starting joint inner pipe 305 is disposed between the starting joint liquid inlet end 302 and the starting joint connection end 303, and the starting joint liquid outlet end 304 is communicated with an inner cavity of the starting joint outer pipe 306; the inner tube 305 and the outer tube 306 are integrally formed, which is convenient for processing.
Preferably, the initial connector liquid inlet end 302, the initial connector connecting end 303 and the initial connector liquid outlet end 304 are respectively formed with internal threads or external threads.
As shown in fig. 9, the hot water pipe-in-pipe 50 includes a hot water outer pipe 51 and a hot water inner pipe 52 having a heat insulation function, the hot water inner pipe 52 is coaxially disposed in the hot water outer pipe 51 by at least one geothermal stiffener 53, a hot water flow path 83 is disposed in the hot water inner pipe 52, and a return water flow path 84 is disposed in the hot water outer pipe 51. The greater the number of geothermal ribs 53 of the pipe 50 in the hot water pipe, the greater the strength of the pipe, and the less likely it is to bend.
Preferably, the ratio of the cross-sectional area of the hot water flow channel to the cross-sectional area of the backwater flow channel is 1:1.
Preferably, the materials of the hot water outer pipe 51 and the hot water inner pipe 52 are PPR or PB, and in the manufacturing process, the hollow glass beads or non-toxic plastic foaming agents such as baking soda are added into the materials of the hot water inner pipe 52, so that the heat conductivity coefficient is controlled to be 0.05w/mK-0.4w/mK, and the heat conductivity is reduced to 20% -70% of the original heat conductivity of the materials.
The hollow glass bead is a specially processed glass bead, which is a novel micron-sized light material developed in the fifth and sixty years, and the main component of the hollow glass bead is borosilicate, the general granularity is 10-250 mu m, and the wall thickness is 1-2 mu m; the hollow glass microsphere has the characteristics of high compressive strength, high melting point, high resistivity, small thermal conductivity coefficient and thermal shrinkage coefficient and the like, and is known as a 'space age material' in the 21 st century. The hollow glass microsphere has obvious weight reduction, sound insulation and heat preservation effects, so that the product has good cracking resistance and reworking performance, is widely used in the fields of glass fiber reinforced plastic, artificial marble, artificial agate and other composite materials, petroleum industry, aerospace, novel high-speed trains, automobile ships, heat insulation coating and the like, and greatly promotes the development of scientific and technological industries in China.
The water separator is generally arranged in the central area of the whole house, the heat source 8 is not generally arranged in the central area, such as a solar water heater is arranged on a roof, and in order to reduce heat loss of a pipeline between the heat source and the water separator, a hot water pipe middle pipe for heat preservation is designed between the heat source and the water separator, the heat preservation property can be improved by an inner pipe and an outer pipe made of heat preservation materials, and heat dissipated by the inner pipe can be absorbed by hot water in the outer pipe and circulated into the heat source 4, so that energy is saved.
As shown in fig. 11, preferably, a hot water pipe 50, an initial connector and a geothermal small pipe 10 are sequentially installed on a pipe-in-pipe installation seat 2 of the independent miniature water pump water separator, a liquid inlet end of the initial connector is connected with a liquid outlet end of the geothermal small pipe 10, a liquid outlet end of the initial connector is connected with a liquid inlet end of the geothermal small pipe 10, and a connection end of the initial connector is connected with the geothermal pipe-in-pipe. The geothermal small pipe 10 is a common geothermal pipe with smaller pipe diameter, is mainly used for different or narrower areas and is convenient for construction.
Circulation system embodiment two:
as shown in fig. 12-13, this embodiment is substantially identical to the first embodiment of the circulation system, except that: the fourth embodiment is adopted, and a towel rack radiator 9 is arranged on the independent miniature water pump water separator.
Further stated, a tube-in-tube mounting seat 2 of the independent miniature water pump water separator is sequentially provided with a tube-in-tube, an initial connector and a towel rack radiator 9, the liquid inlet end of the towel rack radiator 9 is connected with the liquid inlet end of the initial connector, the liquid outlet end of the towel rack radiator 9 is connected with the liquid outlet end of the initial connector, the connecting end of the initial connector is connected with the tube-in-tube through a tube joint, and a plurality of radiating tubes for drying towels and clothes are arranged between the liquid inlet end of the towel rack radiator 9 and the liquid outlet end of the towel rack radiator 9.
Alternatively, as shown in fig. 14, the towel rack radiator 9 is an S-shaped tube-in-tube radiator tube.
The embodiment is mainly used for a bathroom, the geothermal pipe middle pipe 40 is used for heating the bathroom, and the towel rack radiator 9 is used for drying towels or clothes. In addition, a hot water pipe in pipe 50 can be further arranged on one pipe in pipe mounting seat 2 of the independent miniature water pump water separator, and the hot water pipe in pipe 50 is connected with a faucet. Because the inner diameter of the hot water inner pipe 52 is smaller, the cold water remained in the inner part is smaller, and when the tap is opened, the hot water can be discharged quickly, and meanwhile, the waste of the cold water is saved.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (10)
1. An independent miniature water pump water knockout drum, includes hollow water knockout drum main body (1), its characterized in that: a partition board (11) is arranged in the water separator main body (1), and the partition board (11) divides the inner cavity of the water separator main body (1) into a liquid inlet cavity (12) and a backflow cavity (13);
be provided with a plurality of pipe in pipe branch road module on water knockout drum main part (1), pipe in pipe branch road module is including installing on water knockout drum main part (1) at feed liquor chamber (12) place and be used for pipe in the connecting pipe in pipe mount pad (2) and install on water knockout drum main part (1) at backward flow chamber (13) place and with be used for driving inside liquid flowing miniature water pump (3), set up in pipe mount pad (2) feed liquor passageway (21) and intercommunication miniature water pump (3) feed liquor end and pipe in pipe outside pipe's return passage (24), miniature water pump (3) play liquid end intercommunication backward flow chamber (13).
2. An independent micro water pump dispenser according to claim 1, wherein: the water separator main body (1) and the partition plate (11) are integrally formed through an extrusion process.
3. An independent micro water pump dispenser according to claim 1 or 2, characterized in that: be provided with first screw hole on water knockout drum main part (1) at feed liquor chamber (12) place, first screw hole spiro union has pipe mount pad (2) in the pipe, the outer end of pipe mount pad (2) is provided with screw thread portion or joint portion or hot melt portion that is used for connecting the pipe in the pipe, the inner extension of pipe mount pad (2) in the pipe has the link of taking return channel (24), the link other end seals the setting in the through-hole of baffle (11) to make return channel (24) intercommunication miniature water pump (3) feed liquor end.
4. A self-contained micro water pump diverter according to claim 3, wherein: the connecting end is internally provided with a main reflux hole (25), the pipe-in-pipe mounting seat (2) is provided with a main liquid inlet hole (22) for connecting the pipe-in-pipe, a plurality of liquid inlet holes (23) for communicating the main liquid inlet hole (22) and the liquid inlet cavity (12), and a plurality of reflux small holes (26) for communicating the main reflux hole (25) and the pipe-in-pipe, and the liquid inlet holes (23) and the reflux small holes (26) are distributed on the pipe-in-pipe mounting seat (2) in a staggered manner.
5. A self-contained micro water pump diverter according to claim 3, wherein: the outer end of the pipe-in-pipe mounting seat (2) is fixed with a pipe-in-pipe joint A (32) through a clamping nut A (31), the pipe-in-pipe joint A (32) comprises an outer pipe joint A, an inner pipe joint A and a plurality of joint connecting ribs A for connecting the outer pipe joint A and the inner pipe joint A, one end of the outer pipe joint A is provided with a clamping convex ring A matched with the clamping nut A (31), and the other end of the outer pipe joint A is provided with a hot melting part for connecting the pipe-in-pipe.
6. An independent micro water pump dispenser according to claim 1, wherein: one end of the water separator main body (1) is provided with a left end cover A (4 a) which is respectively communicated with a heat source liquid outlet end (81) and a heat source backflow end (82), the other end of the water separator main body is provided with a right end cover A (5 a) which is respectively sealed with a liquid inlet cavity (12) and a backflow cavity (13) through a sealing gasket, and the left end cover A (4 a) comprises an end cover inner pipe which is communicated with the heat source liquid outlet end (81) and the liquid inlet cavity (12) and an end cover outer pipe which is communicated with the heat source backflow end (82) and the backflow cavity (13);
or, one end of the water separator main body (1) is provided with a left end cover B (4B) which is communicated with the heat source liquid outlet end (81) and the liquid inlet cavity (12) and seals the backflow cavity (13), and the other end of the water separator main body is provided with a right end cover B (5B) which is communicated with the heat source backflow end (82) and the backflow cavity (13) and seals the liquid inlet cavity (12).
7. An independent micro water pump dispenser according to claim 1, wherein: a check valve is arranged in the miniature water pump (3); a drain valve (6) is arranged on the water separator main body (1) where the liquid inlet cavity (12) is arranged; an automatic exhaust valve (7) is arranged on the water separator main body (1) where the backflow cavity (13) is located.
8. A pipe-in-pipe geothermal circulation system, characterized in that: the self-contained miniature water pump water separator comprises a heat source (8), a geothermal pipe middle pipe (40) and the independent miniature water pump water separator according to any one of claims 1 to 7, wherein a heat source liquid outlet end (81) of the heat source (8) is communicated with a liquid inlet cavity (12) of the water separator main body (1), and a heat source backflow end (82) of the heat source (8) is communicated with a backflow cavity (13) of the water separator main body (1);
the pipe-in-pipe installation seat (2) outer end of the pipe-in-pipe branch module is provided with a geothermal pipe-in-pipe (40), the geothermal pipe-in-pipe (40) comprises a geothermal outer pipe (41) with a heat conduction function and a geothermal inner pipe (42) with a heat insulation function, the geothermal inner pipe (42) is coaxially arranged in the geothermal outer pipe (41) through at least one geothermal reinforcing rib (43), a hot water runner (83) is arranged in the geothermal inner pipe (42), a backwater runner (84) is arranged in the geothermal outer pipe (41), the sectional area of the hot water runner (83) is equal to the sectional area of the backwater runner (84), and the temperature in the hot water runner (83) can be conducted into the backwater runner (84) through the geothermal inner pipe (42), so that the temperature of the backwater runner (84) is balanced.
9. A tube-in-tube geothermal circulation system according to claim 8, wherein: when the left end cover A (4 a) which is respectively communicated with the heat source liquid outlet end (81) and the heat source reflux end (82) is arranged at one end of the water separator main body (1), an initial joint (300) and a hot water pipe middle pipe (50) are arranged between the heat source (8) and the left end cover A (4 a),
the starting joint (300) comprises a starting joint main body (301), a starting joint liquid inlet end (302) connected with a heat source liquid outlet end (81), a starting joint connecting end (303) connected with a heat preservation pipeline and a starting joint liquid outlet end (304) connected with a heat source reflux end (82) are respectively arranged on the starting joint main body (301), the starting joint main body (301) is composed of a starting joint inner pipe (305) and a starting joint outer pipe (306), a starting joint inner pipe (305) is arranged between the starting joint liquid inlet end (302) and the starting joint connecting end (303), and the starting joint liquid outlet end (304) is communicated with an inner cavity of the starting joint outer pipe (306);
the hot water pipe-in-pipe (50) comprises a hot water outer pipe (51) and a hot water inner pipe (52) with heat insulation functions, the hot water inner pipe (52) is coaxially arranged in the hot water outer pipe (51) through at least one geothermal reinforcing rib (53), a hot water runner (83) is arranged in the hot water inner pipe (52), and a backwater runner (84) is arranged in the hot water outer pipe (51).
10. A tube-in-tube geothermal circulation system according to claim 9, wherein: a pipe-in-pipe mounting seat (2) of the independent miniature water pump water separator is sequentially provided with a hot water pipe-in-pipe (50), an initial connector, a towel rack radiator (9) or a geothermal small pipe (10).
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| CN201811082671.1A CN108916966B (en) | 2018-09-17 | 2018-09-17 | Independent miniature water pump water knockout drum and pipe-in-pipe geothermal circulation system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29519049U1 (en) * | 1995-12-01 | 1996-08-14 | Kraemer Thomas Dipl Ing | Underfloor heating distributor |
| CN201093598Y (en) * | 2007-09-03 | 2008-07-30 | 宋建国 | Water segregator |
| CN101514824A (en) * | 2009-03-23 | 2009-08-26 | 陈国刚 | Geothermal system |
| EP2213948A2 (en) * | 2009-01-29 | 2010-08-04 | Comfort-Sinusverteiler GmbH | Heating circuit distributor |
| CN205690487U (en) * | 2016-06-20 | 2016-11-16 | 河南省天中地能源有限公司 | A kind of hot dry rock heating installation |
| JP2018044391A (en) * | 2016-09-15 | 2018-03-22 | Ｈｐリビングライフ株式会社 | Hot water supply piping system |
| CN208846519U (en) * | 2018-09-17 | 2019-05-10 | 陈奎宏 | A kind of independent micro pump water segregator and tube-in-tube thermal cycle system |
-
2018
- 2018-09-17 CN CN201811082671.1A patent/CN108916966B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29519049U1 (en) * | 1995-12-01 | 1996-08-14 | Kraemer Thomas Dipl Ing | Underfloor heating distributor |
| CN201093598Y (en) * | 2007-09-03 | 2008-07-30 | 宋建国 | Water segregator |
| EP2213948A2 (en) * | 2009-01-29 | 2010-08-04 | Comfort-Sinusverteiler GmbH | Heating circuit distributor |
| CN101514824A (en) * | 2009-03-23 | 2009-08-26 | 陈国刚 | Geothermal system |
| CN205690487U (en) * | 2016-06-20 | 2016-11-16 | 河南省天中地能源有限公司 | A kind of hot dry rock heating installation |
| JP2018044391A (en) * | 2016-09-15 | 2018-03-22 | Ｈｐリビングライフ株式会社 | Hot water supply piping system |
| CN208846519U (en) * | 2018-09-17 | 2019-05-10 | 陈奎宏 | A kind of independent micro pump water segregator and tube-in-tube thermal cycle system |
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