CN107461789B - Rectangular expansion tank for air source heat pump heating and manufacturing method thereof - Google Patents
Rectangular expansion tank for air source heat pump heating and manufacturing method thereof Download PDFInfo
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- CN107461789B CN107461789B CN201710605887.0A CN201710605887A CN107461789B CN 107461789 B CN107461789 B CN 107461789B CN 201710605887 A CN201710605887 A CN 201710605887A CN 107461789 B CN107461789 B CN 107461789B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000010438 heat treatment Methods 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000012545 processing Methods 0.000 claims abstract description 17
- 239000003973 paint Substances 0.000 claims abstract description 7
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000002372 labelling Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 24
- 238000010079 rubber tapping Methods 0.000 claims description 18
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000005553 drilling Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 238000009966 trimming Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 10
- 230000002950 deficient Effects 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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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
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a rectangular expansion tank for air source heat pump heating and a manufacturing method thereof. The manufacturing method comprises the following steps: the method comprises the following steps of upper cover processing, lower cover processing, inflating valve and liquid filling nozzle installation, diaphragm installation, air tightness test, paint spraying protection and labeling. The manufacturing method disclosed by the invention has simple steps, the rejection rate in the manufacturing process is reduced, the diaphragm is convenient and quick to install, the sealing effect between gas and liquid is improved, and the service life of the rectangular expansion tank is prolonged.
Description
Technical Field
the invention relates to a rectangular expansion tank for air source heat pump heating and a manufacturing method thereof.
Background
the expansion tank is widely applied to heating and ventilation systems such as air conditioners, solar energy and boilers, water supply and fire fighting equipment and buffers system pressure fluctuation. In closed circulation systems such as air conditioners, solar energy, boilers, floor heating and the like, the expansion tank is used for absorbing gas in the expansion tank when the temperature of a working medium rises and the volume expands, so that the pressure of the system is prevented from rising too fast, liquid in the expansion tank is released when the temperature of the working medium reduces and the volume contracts, the liquid is supplemented to the system, the pressure of the system is prevented from dropping too violently, and the pressure relief times of a safety valve and the water supplementing times of an automatic water supplementing valve are reduced.
The expansion tank in the prior art is easy to generate a large defective rate in the manufacturing process due to the adoption of an integrally formed design, gas and liquid are separated in an air bag mode, and the induction precision is low.
disclosure of Invention
the invention aims to provide a rectangular expansion tank for heating an air source heat pump and a technical scheme of a manufacturing method of the rectangular expansion tank, aiming at the defects in the prior art, an upper cover and a lower cover are buckled, the defective rate is reduced compared with an integrally formed tank body, and meanwhile, the clamping and positioning between the upper cover and the lower cover are facilitated through a clamping part and a supporting and positioning part, so that the rectangular expansion tank is better in sealing property and more convenient to assemble.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides an air source heat pump heating uses rectangle expansion tank which characterized in that: the device comprises an upper cover and a lower cover, wherein the upper cover is matched with the lower cover, U-shaped grooves are formed in the top surface of the upper cover and the bottom surface of the lower cover, an inflating valve and a liquid filling valve are respectively arranged in the U-shaped grooves, a first cavity and a second cavity are respectively arranged in the upper cover and the lower cover, a diaphragm is arranged between the first cavity and the second cavity, and the diaphragm is fixedly connected in a rectangular expansion tank through a sealing positioning rod; through set up the diaphragm between first cavity and second cavity, can separate gas and liquid, realize the conversion of volume between gas and the liquid, and then play the effect of regulation to heating equipment, sealed locating lever makes things convenient for the installation and the dismantlement of diaphragm, when the diaphragm appears the crack and leads to leaking gas, only need change corresponding diaphragm can, and need not change whole expansion tank, greatly reduced the cost of maintenance of expansion tank, sealed locating lever can improve the sealed degree between first cavity and the second cavity simultaneously.
Further, be provided with on the side of upper cover and support location portion, be provided with joint portion on the side of lower cover, joint portion buckle the lock on supporting location portion, buckle the lock between upper cover and the lower cover, compare with integrated into one piece's box and reduced the defective percentage, press from both sides tight location through joint portion and support location portion between be convenient for upper cover and the lower cover simultaneously, have better leakproofness for the assembly of rectangle expansion tank is more convenient.
Further, the inflating valve comprises a core body, a limiting block is arranged at the bottom end of the core body, a locking nut and a clamping block are sleeved on the core body, a rubber ring is arranged between the limiting block and the clamping block, the locking nut is located above the clamping block, a protecting cover is sleeved at the top end of the core body, and through the design of the locking nut and the rubber ring, the sealing performance of the inflating valve is improved, air leakage is prevented from occurring, and the working efficiency of the expansion tank is influenced.
Furthermore, the thread form is personally submitted in the outside of core, and the design of thread form does benefit to the joint strength who improves between expansion tank and the outside pipeline, and the lock nut's of being convenient for installation and dismantlement simultaneously, maintenance is simple and convenient.
Further, sealed locating lever is buckled and is the C font, be provided with the winding pipe in the C font, diaphragm fixed connection is on the winding pipe, form the compression cavity between winding pipe and the sealed locating lever, the both ends of sealed locating lever support the both sides of diaphragm, design through the C font can improve the joint strength between sealed locating lever and the diaphragm, prevent to influence the sealed effect of diaphragm owing to becoming flexible, the winding pipe is used for fixed diaphragm, and can adjust the tensile force size of diaphragm through rotating, the compression cavity can be according to joint portion and support the pressure size between the location portion and adjust, prevent that sealed locating lever from crushing the winding pipe.
Further, sealed locating lever includes lath and sealing layer, and the lath is located the sealing layer, and the material of sealing layer is rubber materials, and the lath has effectively improved the intensity of sealed locating lever, and the sealing layer is favorable to protecting the diaphragm, prevents that the lath from directly contacting with the diaphragm and causing the damage.
furthermore, the rectangular expansion tank is flat, the flat design facilitates installation and disassembly of the expansion tank, the space occupancy rate is small, and the installation steps are simplified.
the manufacturing method of the rectangular expansion tank for air source heat pump heating is characterized by comprising the following steps:
1) machining of upper covers
a. blanking: firstly, manufacturing an upper cover rectangular mould according to the size of a rectangular expansion tank, horizontally placing the upper cover rectangular mould, then installing a first core mould in the upper cover rectangular mould, fixing the first core mould and the upper cover rectangular mould, continuously adding molten iron with the temperature of 1560-1750 ℃ into the upper cover rectangular mould until the liquid level of the molten iron is flush with the height of the rectangular mould, cooling to 950-1100 ℃ to form a first U-shaped groove, and taking out the first core mould;
b. And (3) drawing and forming: after the temperature of the first U-shaped groove is cooled to 500-750 ℃, vertically stretching supporting and positioning parts with the width of 10-20 cm at the opening of the first U-shaped groove along four side edges, and enabling two adjacent supporting and positioning parts to be in transition connection through arcs;
c. trimming: after the first U-shaped groove is cooled to room temperature, firstly taking the first U-shaped groove out of the upper cover rectangular die, inversely buckling the first U-shaped groove on a horizontal processing table, then drawing a corresponding width on the supporting and positioning part by using a marking pen according to the designed size, then performing edge cutting treatment on the supporting and positioning part along the marked width by using a cutting machine, reserving the reserved width of 2mm during edge cutting, and finally performing finish machining to cut the width of the supporting and positioning part to the designed width;
d. punching: after the trimming is finished, vertically placing the first U-shaped groove on a processing table, enabling one side with the U-shaped groove to face upwards, and then vertically drilling a first through hole in the U-shaped groove by using a drilling machine;
e. Tapping: tapping along the first through hole in the first U-shaped groove by using a tapping machine to form an upper cover;
2) Lower cover processing
a. blanking: firstly, manufacturing a lower cover rectangular mould according to the size of a rectangular expansion tank, horizontally placing the lower cover rectangular mould, then installing a second core mould in the lower cover rectangular mould, fixing the second core mould and the lower cover rectangular mould, continuously adding molten iron with the temperature of 1560-1750 ℃ into the lower cover rectangular mould until the liquid level height of the molten iron is flush with the height of the rectangular mould, forming a second U-shaped groove after cooling to 950-1100 ℃, and taking out the core mould;
b. And (3) drawing and forming: after the temperature of the second U-shaped groove is cooled to 500-750 ℃, clamping parts with the width of 40-50 cm are vertically stretched out at the opening of the second U-shaped groove along four side edges, and two adjacent clamping parts are in transition connection through arcs;
c. flanging and punching: after the temperature of the second U-shaped groove is cooled to 300-400 ℃, flanging the clamping part by using a flanging machine, vertically placing the second U-shaped groove on a processing table after flanging is finished, enabling one side with the U-shaped groove to face upwards, and vertically drilling a second through hole in the U-shaped groove by using a drilling machine;
d. tapping: tapping along the second through hole in the second U-shaped groove by using a tapping machine to form a lower cover;
3) Valve and filler fitting
a. After the upper cover and the lower cover are machined, installing an inflating valve in a first through hole of the upper cover, penetrating a core body from the inner side surface of the upper cover, sequentially sleeving a rubber ring, a clamping block and a locking nut on the core body, extruding the rubber ring on the outer side surface of the first through hole by the clamping block, fixing the core body through the locking nut, and finally installing a protective cover at the top end of the core body;
b. A liquid filling nozzle is arranged in the second through hole of the lower cover;
4) diaphragm mounting
a. Firstly, cutting a diaphragm according to the sizes of an upper cover and a lower cover to enable the length and the width of the diaphragm to be matched with the size of an expansion tank;
b. then respectively winding two opposite side edges of the diaphragm on the winding pipe, and performing clamping treatment after sleeving a sealing positioning rod on the winding pipe;
c. Then, the sealing positioning rods on the upper side and the lower side are respectively installed in the clamping part of the lower cover, the upper cover is buckled on the lower cover, the clamping part is fixedly connected with the supporting and positioning part through a clamping mechanism, and the pressure applied each time is ensured to be equal in the clamping process;
5) Air tightness test
after the rectangular expansion tank is integrally installed, connecting an inflating valve and a liquid filling nozzle with a gas transmission pipeline respectively, installing an inflator pump on the gas transmission pipeline at one end of the inflating valve, installing a gas measuring machine on the gas transmission pipeline at one end of the liquid filling nozzle, starting the inflator pump, observing the numerical value change of the gas measuring machine, and judging the sealing degree of the rectangular expansion tank;
6) spray protection
after the air tightness test is qualified, firstly removing dirt on the outer side surface of the rectangular expansion tank, then spraying a layer of iron oxide red epoxy resin primer on the outer side surface of the rectangular expansion tank, polishing after the primer is dried, spraying reflective paint and transparent finish paint, and finally drying;
7) label (WQWK)
after the whole processing of the rectangular expansion tank is finished, labeling is carried out on the surface of the rectangular expansion tank.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. The diaphragm is arranged between the first cavity and the second cavity, so that gas and liquid can be separated, the volume conversion between the gas and the liquid is realized, and the heating equipment is adjusted;
2. the sealing positioning rod facilitates the installation and the disassembly of the diaphragm, when the diaphragm is cracked to cause air leakage, only the corresponding diaphragm needs to be replaced, and the whole expansion tank does not need to be replaced, so that the maintenance cost of the expansion tank is greatly reduced, and meanwhile, the sealing positioning rod can improve the sealing degree between the first cavity and the second cavity;
3. The upper cover and the lower cover are buckled, defective rate is reduced compared with an integrally formed box body, clamping and positioning between the upper cover and the lower cover are facilitated through the clamping portion and the supporting and positioning portion, good sealing performance is achieved, and the rectangular expansion tank is more convenient to assemble;
4. the C-shaped design can improve the connection strength between the sealing positioning rod and the diaphragm, prevent the sealing effect of the diaphragm from being influenced by looseness, the winding pipe is used for fixing the diaphragm, the tensile force of the diaphragm can be adjusted through rotation, the compression cavity can be adjusted according to the pressure between the clamping part and the supporting and positioning part, and the sealing positioning rod is prevented from crushing the winding pipe;
5. The manufacturing method disclosed by the invention has simple steps, the rejection rate in the manufacturing process is reduced, the diaphragm is convenient and quick to install, the sealing effect between gas and liquid is improved, and the service life of the rectangular expansion tank is prolonged.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
fig. 1 is an effect diagram of a rectangular expansion tank for air source heat pump heating and a manufacturing method thereof;
FIG. 2 is a schematic view showing the internal structure of the rectangular expansion tank according to the present invention;
FIG. 3 is a schematic view of the connection between the supporting and positioning portion and the engaging portion of the present invention;
FIG. 4 is a schematic view of the structure of the inflating valve of the present invention;
FIG. 5 is a schematic view showing the connection between the diaphragm and the seal positioning rod according to the present invention
in the figure: 1-covering the upper cover; 2-lower cover; 3-U-shaped groove; 4-inflating valve; 5-liquid filling nozzle; 6-a first cavity; 7-a second cavity; 8-a separator; 9-sealing the positioning rod; 10-supporting the positioning part; 11-a snap-in part; 12-a core; 13-a limiting block; 14-a fixture block; 15-rubber ring; 16-a lock nut; 17-a protective cover; 18-a winding tube; 19-compression chamber; 20-reinforcing steel bars; 21-sealing layer.
Detailed Description
as shown in fig. 1 to 5, the rectangular expansion tank for air source heat pump heating comprises an upper cover 1 and a lower cover 2, wherein the upper cover 1 is matched with the lower cover 2, a supporting and positioning portion 10 is arranged on the side edge of the upper cover 1, a clamping portion 11 is arranged on the side edge of the lower cover 2, the clamping portion 11 is buckled on the supporting and positioning portion 10 in a bending mode, the upper cover 1 and the lower cover 2 are buckled in a bending mode, defective rate is reduced compared with an integrally formed tank body, clamping and positioning between the upper cover 1 and the lower cover 2 are facilitated through the clamping portion 11 and the supporting and positioning portion 10, good sealing performance is achieved, and the rectangular expansion tank is more convenient to assemble.
all be provided with U-shaped groove 3 on the top surface of upper cover 1 and the bottom surface of lower cover 2, be provided with inflating valve 4 and prefill mouth 5 in the U-shaped groove 3 respectively, inflating valve 4 includes core 12, the bottom of core 12 is provided with stopper 13, lock nut 16 and fixture block 14 have been cup jointed on the core 12, be provided with rubber ring 15 between stopper 13 and the fixture block 14, lock nut 16 is located the top of fixture block 14, the top of core 12 has been cup jointed protective cover 17, design through lock nut 16 and rubber ring 15, be favorable to improving inflating valve 4's sealing performance, prevent to leak gas and influence the work efficiency of expansion tank, the screw thread form is personally submitted to the outside of core 12, the design of screw thread form is favorable to improving the joint strength between expansion tank and the outside pipeline, the installation and the dismantlement of lock nut 16 of being convenient for simultaneously, easy maintenance is convenient.
the upper cover 1 and the lower cover 2 are respectively provided with a first cavity 6 and a second cavity 7, a diaphragm 8 is arranged between the first cavity 6 and the second cavity 7, the diaphragm 8 is fixedly connected in a rectangular expansion tank through a sealing positioning rod 9, the sealing positioning rod 9 is bent into a C shape, a winding pipe 18 is arranged in the C shape, the diaphragm 8 is fixedly connected on the winding pipe 18, a compression cavity 19 is formed between the winding pipe 18 and the sealing positioning rod 9, two ends of the sealing positioning rod 9 are propped against two sides of the diaphragm 8, the connection strength between the sealing positioning rod 9 and the diaphragm 8 can be improved through the design of the C shape, the sealing effect of the diaphragm 8 is prevented from being influenced due to looseness, the winding pipe 18 is used for fixing the diaphragm 8, the tension force of the diaphragm 8 can be adjusted through rotation, the compression cavity 19 can be adjusted according to the pressure between the clamping part 11 and the supporting positioning, the sealing positioning rod 9 is prevented from crushing the winding pipe 18, the sealing positioning rod 9 comprises a plate rib 20 and a sealing layer 21, the plate rib 20 is located in the sealing layer 21, the sealing layer 21 is made of rubber materials, the plate rib 20 effectively improves the strength of the sealing positioning rod 9, the sealing layer 21 is favorable for protecting the diaphragm 8 and preventing the damage caused by the direct contact of the plate rib 20 and the diaphragm 8, the rectangular expansion tank is flat, the flat design is convenient for the installation and the disassembly of the expansion tank, the space occupancy rate is small, and the installation steps are simplified; through set up diaphragm 8 between first cavity 6 and second cavity 7, can separate gas and liquid, realize the conversion of volume between gas and the liquid, and then play the effect of regulation to heating equipment, sealed locating lever 9 makes things convenient for diaphragm 8's installation and dismantlement, when diaphragm 8 appears the crack and leads to leaking gas, only need change corresponding diaphragm 8 can, and need not change whole expansion tank, greatly reduced the cost of maintenance of expansion tank, sealed locating lever 9 can improve the sealed degree between first cavity 6 and the second cavity 7 simultaneously.
The manufacturing method of the rectangular expansion tank for air source heat pump heating comprises the following steps:
1) Machining of upper covers
a. blanking: firstly, manufacturing an upper cover 1 rectangular mould according to the size of a rectangular expansion tank, horizontally placing the upper cover 1 rectangular mould, then installing a first core mould in the upper cover 1 rectangular mould, fixing the first core mould and the upper cover 1 rectangular mould, continuously adding molten iron with the temperature of 1560-1750 ℃ into the upper cover 1 rectangular mould until the liquid level of the molten iron is flush with the height of the rectangular mould, forming a first U-shaped groove after cooling to 950-1100 ℃, and taking out the first core mould;
b. And (3) drawing and forming: after the temperature of the first U-shaped groove is cooled to 500-750 ℃, vertically stretching supporting and positioning parts 10 with the width of 10-20 cm at the opening of the first U-shaped groove along four side edges, wherein two adjacent supporting and positioning parts 10 are in transition connection through arcs;
c. Trimming: after the first U-shaped groove is cooled to room temperature, firstly taking the first U-shaped groove out of the rectangular die of the upper cover 1, inversely buckling the first U-shaped groove on a horizontal processing table, then drawing a corresponding width on the supporting and positioning part 10 by using a marking pen according to the designed size, then performing edge cutting treatment on the supporting and positioning part 10 along the marked width by using a cutting machine, reserving the reserved width of 2mm during edge cutting, and finally performing finish machining to cut the width of the supporting and positioning part 10 to the designed width;
d. Punching: after the trimming is finished, vertically placing the first U-shaped groove on a processing table, enabling the side with the U-shaped groove 3 to face upwards, and then vertically drilling a first through hole in the U-shaped groove 3 by using a drilling machine;
e. Tapping: tapping along the first through hole in the first U-shaped groove 3 by using a tapping machine to form an upper cover 1;
2) Lower cover processing
a. blanking: firstly, manufacturing a lower cover 2 rectangular mould according to the size of a rectangular expansion tank, horizontally placing the lower cover 2 rectangular mould, then installing a second core mould in the lower cover 2 rectangular mould, fixing the second core mould and the lower cover 2 rectangular mould, continuously adding molten iron with the temperature of 1560-1750 ℃ into the lower cover 2 rectangular mould until the liquid level height of the molten iron is flush with the height of the rectangular mould, forming a second U-shaped groove after cooling to 950-1100 ℃, and taking out the core mould;
b. and (3) drawing and forming: after the temperature of the second U-shaped groove is cooled to 500-750 ℃, vertically stretching clamping parts 11 with the width of 40-50 cm at the opening of the second U-shaped groove along four side edges, and enabling two adjacent clamping parts 11 to be in transition connection through arcs;
c. flanging and punching: after the temperature of the second U-shaped groove is cooled to 300-400 ℃, carrying out flanging treatment on the clamping part 11 by using a flanging machine, vertically placing the second U-shaped groove on a processing table after the flanging is finished, enabling one side with the U-shaped groove 3 to be upward, and vertically drilling a second through hole in the U-shaped groove 3 by using a drilling machine;
d. Tapping: tapping along the second through hole in the second U-shaped groove 3 by using a tapping machine to form a lower cover 2;
3) valve and filler fitting
a. After the upper cover 1 and the lower cover 2 are processed, installing an inflating valve 4 in a first through hole of the upper cover 1, penetrating a core body 12 from the inner side surface of the upper cover 1, then sequentially sleeving a rubber ring 15, a clamping block 14 and a locking nut 16 on the core body 12, extruding the rubber ring 15 on the outer side surface of the first through hole by the clamping block 14, fixing the core body 12 through the locking nut 16, and finally installing a protective cover 17 at the top end of the core body 12;
b. a liquid filling nozzle 5 is arranged in the second through hole of the lower cover 2;
4) diaphragm mounting
a. firstly, cutting a diaphragm 8 according to the sizes of an upper cover 1 and a lower cover 2, so that the length and the width of the diaphragm 8 are matched with the size of an expansion tank;
b. then, two opposite side edges of the diaphragm 8 are respectively wound on the winding pipes 18, and the sealing positioning rods 9 are sleeved on the winding pipes 18 for clamping;
c. then, the sealing positioning rods 9 on the upper side and the lower side are respectively arranged in the clamping part 11 of the lower cover 2, the upper cover 1 is buckled on the lower cover 2, the clamping part 11 is fixedly connected with the supporting and positioning part 10 through a clamping mechanism, and the pressure applied each time is ensured to be equal in the clamping process;
5) Air tightness test
after the rectangular expansion tank is integrally installed, the inflating valve 4 and the liquid filling nozzle 5 are respectively connected with a gas transmission pipeline, an inflator pump is installed on the gas transmission pipeline at one end of the inflating valve 4, a gas measuring machine is installed on the gas transmission pipeline at one end of the liquid filling nozzle 5, then the inflator pump is started, the numerical value change of the gas measuring machine is observed, and the sealing degree of the rectangular expansion tank is judged;
6) Spray protection
after the air tightness test is qualified, firstly removing dirt on the outer side surface of the rectangular expansion tank, then spraying a layer of iron oxide red epoxy resin primer on the outer side surface of the rectangular expansion tank, polishing after the primer is dried, spraying reflective paint and transparent finish paint, and finally drying;
7) label (WQWK)
After the whole processing of the rectangular expansion tank is finished, labeling is carried out on the surface of the rectangular expansion tank.
the above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.
Claims (7)
1. a manufacturing method of a rectangular expansion tank for air source heat pump heating is characterized in that: the inflation valve comprises an upper cover and a lower cover, wherein the upper cover is matched with the lower cover, U-shaped grooves are formed in the top surface of the upper cover and the bottom surface of the lower cover, an inflating valve and a liquid filling valve are respectively arranged in the U-shaped grooves, a first cavity and a second cavity are respectively arranged in the upper cover and the lower cover, a diaphragm is arranged between the first cavity and the second cavity, and the diaphragm is fixedly connected in the rectangular expansion tank through a sealing positioning rod; the method comprises the following steps:
1) Machining of upper covers
a. Blanking: firstly, manufacturing an upper cover rectangular mould according to the size of a rectangular expansion tank, horizontally placing the upper cover rectangular mould, then installing a first core mould in the upper cover rectangular mould, fixing the first core mould and the upper cover rectangular mould, continuously adding molten iron with the temperature of 1560-1750 ℃ into the upper cover rectangular mould until the liquid level of the molten iron is flush with the height of the rectangular mould, cooling to 950-1100 ℃ to form a first U-shaped groove, and taking out the first core mould;
b. and (3) drawing and forming: after the temperature of the first U-shaped groove is cooled to 500-750 ℃, vertically stretching supporting and positioning parts with the width of 10-20 cm at the opening of the first U-shaped groove along four side edges, and enabling two adjacent supporting and positioning parts to be in transition connection through arcs;
c. Trimming: after the first U-shaped groove is cooled to room temperature, firstly taking the first U-shaped groove out of the upper cover rectangular die, inversely buckling the first U-shaped groove on a horizontal processing table, then drawing a corresponding width on the supporting and positioning part by using a marking pen according to the designed size, then performing edge cutting treatment on the supporting and positioning part along the marked width by using a cutting machine, reserving the reserved width of 2mm during edge cutting, and finally performing finish machining to cut the width of the supporting and positioning part to the designed width;
d. Punching: after the trimming is finished, vertically placing the first U-shaped groove on a processing table, enabling one side with the U-shaped groove to face upwards, and then vertically drilling a first through hole in the U-shaped groove by using a drilling machine;
e. Tapping: tapping along the first through hole in the first U-shaped groove by using a tapping machine to form an upper cover;
2) Lower cover processing
a. blanking: firstly, manufacturing a lower cover rectangular mould according to the size of a rectangular expansion tank, horizontally placing the lower cover rectangular mould, then installing a second core mould in the lower cover rectangular mould, fixing the second core mould and the lower cover rectangular mould, continuously adding molten iron with the temperature of 1560-1750 ℃ into the lower cover rectangular mould until the liquid level height of the molten iron is flush with the height of the rectangular mould, forming a second U-shaped groove after cooling to 950-1100 ℃, and taking out the core mould;
b. and (3) drawing and forming: after the temperature of the second U-shaped groove is cooled to 500-750 ℃, clamping parts with the width of 40-50 cm are vertically stretched out at the opening of the second U-shaped groove along four side edges, and two adjacent clamping parts are in transition connection through arcs;
c. flanging and punching: after the temperature of the second U-shaped groove is cooled to 300-400 ℃, flanging the clamping part by using a flanging machine, vertically placing the second U-shaped groove on a processing table after flanging is finished, enabling one side with the U-shaped groove to face upwards, and vertically drilling a second through hole in the U-shaped groove by using a drilling machine;
d. tapping: tapping along the second through hole in the second U-shaped groove by using a tapping machine to form a lower cover;
3) Valve and filler fitting
a. After the upper cover and the lower cover are machined, installing an inflating valve in a first through hole of the upper cover, penetrating a core body from the inner side surface of the upper cover, sequentially sleeving a rubber ring, a clamping block and a locking nut on the core body, extruding the rubber ring on the outer side surface of the first through hole by the clamping block, fixing the core body through the locking nut, and finally installing a protective cover at the top end of the core body;
b. a liquid filling nozzle is arranged in the second through hole of the lower cover;
4) Diaphragm mounting
a. firstly, cutting a diaphragm according to the sizes of an upper cover and a lower cover to enable the length and the width of the diaphragm to be matched with the size of an expansion tank;
b. then respectively winding two opposite side edges of the diaphragm on the winding pipe, and performing clamping treatment after sleeving a sealing positioning rod on the winding pipe;
c. Then, the sealing positioning rods on the upper side and the lower side are respectively installed in the clamping part of the lower cover, the upper cover is buckled on the lower cover, the clamping part is fixedly connected with the supporting and positioning part through a clamping mechanism, and the pressure applied each time is ensured to be equal in the clamping process;
5) Air tightness test
After the rectangular expansion tank is integrally installed, connecting an inflating valve and a liquid filling nozzle with a gas transmission pipeline respectively, installing an inflator pump on the gas transmission pipeline at one end of the inflating valve, installing a gas measuring machine on the gas transmission pipeline at one end of the liquid filling nozzle, starting the inflator pump, observing the numerical value change of the gas measuring machine, and judging the sealing degree of the rectangular expansion tank;
6) Spray protection
after the air tightness test is qualified, firstly removing dirt on the outer side surface of the rectangular expansion tank, then spraying a layer of iron oxide red epoxy resin primer on the outer side surface of the rectangular expansion tank, polishing after the primer is dried, spraying reflective paint and transparent finish paint, and finally drying;
7) Label (WQWK)
after the whole processing of the rectangular expansion tank is finished, labeling is carried out on the surface of the rectangular expansion tank.
2. The manufacturing method of the rectangular expansion tank for air source heat pump heating according to claim 1, characterized in that: the side of upper cover is provided with supports location portion, be provided with joint portion on the side of lower cover, joint portion buckle the lock and be in support location portion is last.
3. The manufacturing method of the rectangular expansion tank for air source heat pump heating according to claim 1, characterized in that: the inflating valve comprises a core body, a limiting block is arranged at the bottom end of the core body, a locking nut and a clamping block are sleeved on the core body, a rubber ring is arranged between the limiting block and the clamping block, the locking nut is located above the clamping block, and a protective cover is sleeved at the top end of the core body.
4. the manufacturing method of the rectangular expansion tank for air source heat pump heating according to claim 3, characterized in that: the outer side surface of the core body is in a thread shape.
5. the manufacturing method of the rectangular expansion tank for air source heat pump heating according to claim 1, characterized in that: the sealing positioning rod is bent to be C-shaped, a winding pipe is arranged in the C-shaped, the diaphragm is fixedly connected to the winding pipe, a compression cavity is formed between the winding pipe and the sealing positioning rod, and two ends of the sealing positioning rod abut against two sides of the diaphragm.
6. the manufacturing method of the rectangular expansion tank for air source heat pump heating according to claim 5, characterized in that: the sealing positioning rod comprises a plate rib and a sealing layer, the plate rib is located in the sealing layer, and the sealing layer is made of rubber materials.
7. the manufacturing method of the rectangular expansion tank for air source heat pump heating according to claim 1, characterized in that: the rectangular expansion tank is flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710605887.0A CN107461789B (en) | 2017-07-24 | 2017-07-24 | Rectangular expansion tank for air source heat pump heating and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710605887.0A CN107461789B (en) | 2017-07-24 | 2017-07-24 | Rectangular expansion tank for air source heat pump heating and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107461789A CN107461789A (en) | 2017-12-12 |
| CN107461789B true CN107461789B (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710605887.0A Active CN107461789B (en) | 2017-07-24 | 2017-07-24 | Rectangular expansion tank for air source heat pump heating and manufacturing method thereof |
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| Country | Link |
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| CN (1) | CN107461789B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210945U (en) * | 1986-12-27 | 1987-10-31 | 肖超 | Automatic pressure regulator by means of expansion device for water heating system |
| CN2921697Y (en) * | 2006-06-05 | 2007-07-11 | 裘琅琮 | Expanded water tank |
| CN101165379A (en) * | 2006-10-17 | 2008-04-23 | 王嘉民 | Air valve |
| CN205208936U (en) * | 2015-12-10 | 2016-05-04 | 浙江普尔法智能电气有限公司 | Hanging is expansion tank for stove |
-
2017
- 2017-07-24 CN CN201710605887.0A patent/CN107461789B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210945U (en) * | 1986-12-27 | 1987-10-31 | 肖超 | Automatic pressure regulator by means of expansion device for water heating system |
| CN2921697Y (en) * | 2006-06-05 | 2007-07-11 | 裘琅琮 | Expanded water tank |
| CN101165379A (en) * | 2006-10-17 | 2008-04-23 | 王嘉民 | Air valve |
| CN205208936U (en) * | 2015-12-10 | 2016-05-04 | 浙江普尔法智能电气有限公司 | Hanging is expansion tank for stove |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107461789A (en) | 2017-12-12 |
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Effective date of registration: 20230411 Address after: 266300 No. 21 Xiangjiang Road, Jiaozhou Economic and Technological Development Zone, Jiaozhou City, Qingdao City, Shandong Province Patentee after: Qingdao Kaifa Longhai Intelligent Control Co.,Ltd. Address before: No.1, Jinhai Road, Hongdao Economic Zone, Qingdao, Shandong 266113 Patentee before: QINGDAO KAITUO LONGHAI REFRIGERATION FITTINGS CO.,LTD. Patentee before: XINCHANG COUNTY FANGYUAN BEARING TECHNOLOGY INNOVATION SERVICE CENTER |