CN210740808U - Throttle pipe applied to heat pump air conditioning equipment - Google Patents
Throttle pipe applied to heat pump air conditioning equipment Download PDFInfo
- Publication number
- CN210740808U CN210740808U CN201921255408.8U CN201921255408U CN210740808U CN 210740808 U CN210740808 U CN 210740808U CN 201921255408 U CN201921255408 U CN 201921255408U CN 210740808 U CN210740808 U CN 210740808U
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- Prior art keywords
- valve core
- hole
- valve
- core section
- valve body
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- Expired - Fee Related
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000005057 refrigeration Methods 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 abstract description 6
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 abstract description 2
- LTPBRCUWZOMYOC-UHFFFAOYSA-N beryllium oxide Inorganic materials O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a throttle pipe of application on heat pump air conditioning equipment, it is including seting up being pipy valve body of through-hole, locate the filter screen in the through-hole at the both ends of tubulose valve body, form the throttle space between the filter screen at both ends, the throttle pipe is still including installing the first case in the throttle space, keep away from the second case of first case when first case and heat during the refrigeration, first orifice and second orifice have been seted up respectively to the middle part of first case and second case, the pressure release hole has been seted up on the second case of second orifice periphery, the cross sectional area of pressure release hole and second orifice has not been less than the 1/5 of the cross section of through-hole. The valve body is of an integrated tubular design, and only two connecting points at two ends of the valve body are arranged when the valve body is connected with an external pipeline for use; the two-way filter screen is integrated, so that the filth blockage of residues and beryllium oxide generated during system welding on the internal valve core is reduced; two groups of valve cores are integrated according to different throttling requirements of the heat pump air conditioner for refrigeration and heating.
Description
Technical Field
The utility model relates to a throttle pipe of application on heat pump air conditioning equipment.
Background
The throttling component used by the heat pump type air conditioning equipment is commonly provided with an electronic expansion valve component and a throttling capillary component, and the use of the throttling capillary component (shown in figure 1) has the following problems: 1) the assembly is formed by combining and welding a plurality of components, and if any one component has quality problems, the whole assembly cannot be normally used; 2) the welding positions of the components are more in the processing process, the workload is large, and the probability of missing welding and missing welding is high; 3) the assembly comprises two or more capillaries, the placement position of each capillary must be accurate, and the efficiency is relatively low in the actual production process.
Disclosure of Invention
The utility model aims at providing a throttle pipe of using on heat pump air conditioning equipment.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a throttle pipe of application on heat pump air conditioning equipment, its includes the tubulose valve body that is of seting up the through-hole, locate in the through-hole at the both ends of tubulose valve body, form the throttle space between the filter screen at both ends, throttle pipe still including install in first case in the throttle space, keep away from during refrigeration first case and hug closely during heating the second case of first case, first orifice and second orifice have been seted up respectively in the middle part of first case and second case, the pressure release hole has been seted up on the second case of second orifice periphery, the cross sectional area sum of pressure release hole and second orifice is not less than 1/5 of the cross section of through-hole.
Preferably, the first valve core comprises a first valve core section and a second valve core section which is positioned at the right side of the first valve core section and coaxially and fixedly connected with the first valve core section, the outer diameter of the second valve core section is larger than that of the first valve core section, and the second valve core section and the first valve core section are integrally formed.
Preferably, the first valve core is arranged on the left side of the second valve core, a deep sliding groove extending parallel to the axis of the valve body is formed in the inner side wall of the valve body, a deep protruding block matched with the deep sliding groove is arranged on the outer peripheral surface of the second valve core section, and the deep protruding block is connected in the deep sliding groove in a sliding mode.
Furthermore, a guide ring fixed in the valve body is sleeved on the second valve core section.
Preferably, the first valve core is arranged on the left side of the second valve core, the first valve core is fixedly arranged in the throttling space, the periphery of the first valve core is tightly attached to the inner wall of the valve body, a shallow sliding groove extending parallel to the axis of the valve body is formed in the inner side wall of the valve body on the right side of the first valve core, a shallow protruding block matched with the shallow sliding groove is fixedly arranged on the side wall of the second valve core, and the shallow protruding block is connected in the shallow sliding groove in a sliding mode.
Furthermore, the second valve core comprises a third valve core section and a fourth valve core section which is positioned on the right side of the third valve core section and is coaxially and fixedly connected with the third valve core section, the outer diameter of the fourth valve core section is smaller than that of the third valve core section, the four valve core sections and the third valve core section are integrally formed, and the shallow bump is arranged on the outer peripheral surface of the third valve core section.
Preferably, the diameter of the first throttling hole is 0.5-5 mm.
Preferably, the diameter of the second throttling hole is 0.5-5 mm.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the valve body is of an integrated tubular design, and only two connecting points at two ends of the valve body are arranged when the valve body is connected with an external pipeline for use; the two-way filter screen is integrated, so that the filth blockage of residues and beryllium oxide generated during system welding on an internal valve core is reduced; two groups of valve cores are integrated according to different throttling requirements of the heat pump air conditioner for refrigeration and heating.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic structural view of the present invention according to the first embodiment;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
FIG. 5 is a left side view of the first valve spool of the first embodiment;
FIG. 6 is a right side view of the first valve spool of the first embodiment;
FIG. 7 is a left side view of a second valve cartridge according to the first embodiment;
FIG. 8 is a right side view of the second valve spool of the first embodiment;
FIG. 9 is a schematic structural view of a throttle pipe in the second embodiment;
fig. 10 is a schematic structural view of the present invention in heating according to the first embodiment.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
Example one
As shown in fig. 2 and 10, the throttle pipe applied to the heat pump air conditioning equipment includes a tubular valve body 0 provided with a through hole 01, filter screens 9 arranged in the through holes 01 at both ends of the tubular valve body 0, a throttle space 8 formed between the filter screens 9 at both ends, a first valve core 1 installed in the throttle space 8, and a second valve core 2 which is far away from the first valve core 1 during cooling and is tightly attached to the first valve core 1 during heating.
As shown in fig. 5 and 7, the first throttle hole 11 and the second throttle hole 21 are respectively opened at the middle parts of the first spool 1 and the second spool 2, the pressure relief hole 22 is opened at the second spool 2 at the periphery of the second throttle hole 21, the cross-sectional area of the pressure relief hole 22 and the second throttle hole 21 is not smaller than 1/5 of the cross-sectional area of the through hole 01, the aperture of the first throttle hole 11 is 0.5-5mm, and the aperture of the second throttle hole 21 is 0.5-5 mm.
As shown in fig. 5 and 6, the first valve core 1 includes a first valve core section 12, and a second valve core section 13 located at the right side of the first valve core section 12 and coaxially and fixedly connected with the first valve core section 12, wherein the outer diameter of the second valve core section 13 is larger than the outer diameter of the first valve core section 12, and the second valve core section 13 and the first valve core section 12 are integrally formed. The inner side wall of the valve body 0 is provided with a deep sliding groove 14 extending parallel to the axis of the valve body 0, the outer peripheral surface of the second valve core section 13 is provided with a deep bump 15 matched with the deep sliding groove 14, and the deep bump 15 is connected in the deep sliding groove 14 in a sliding manner. The second spool section 13 is sleeved with a guide ring 16 fixed in the valve body 0. The right side of the first valve core 1 and the inner side wall of the valve body 0 are provided with a shallow sliding groove 23 which is parallel to the axis extension of the valve body 0, the side wall of the second valve core 2 is fixedly provided with a shallow bump 24 matched with the shallow sliding groove 23, and the shallow bump 24 is slidably connected in the shallow sliding groove 23. The depth of the deep sliding groove 14 is greater than that of the shallow sliding groove 23, when the first valve core 1 is located at the leftmost end of the deep sliding groove 14, the right end face of the first valve core 1 and the end face of the leftmost end of the shallow sliding groove 23 are coplanar, at this time, if the second valve core 2 is located at the leftmost end of the shallow sliding groove 23, the left end face of the second valve core 2 is in sealing fit with the right end face of the first valve core 1, only the first throttle hole 11 and the second throttle hole 21 can pass through media, and the axial projections of the deep sliding groove 14 and the shallow sliding groove 23 in the valve body 0 are not overlapped and are arranged in a staggered mode, the best are perpendicular to each other, the valve body 0 can be spliced at two ends, and the spliced face is within the range of the deep sliding groove 14. As shown in fig. 7 and 8, the second spool 2 includes a third spool section 25, and a fourth spool section 26 located on the right side of the third spool section 25 and coaxially and fixedly connected to the third spool section 25, the outer diameter of the fourth spool section 26 is smaller than the outer diameter of the third spool section 25, the fourth spool section and the third spool section 25 are integrally formed, a shallow protrusion 24 is provided on the outer peripheral surface of the third spool section 25, and a pressure relief hole 22 is provided on the end surface of the third spool section 25.
When refrigerating, medium flows from the left side to the right side in fig. 2, the first valve core 1 and the second valve core 2 move rightwards under the pushing of the medium, when the first valve core 1 moves to the rightmost side of the deep sliding chute 14, the first valve core 1 stops moving, the second valve core 2 continues to slide rightwards under the driving of inertia and the medium until the rightmost end of the shallow sliding chute 23, because the first throttling hole 11 and the second throttling hole 21 are separated, and the periphery of the second throttling hole 21 is provided with the pressure relief hole 22, at this moment, the second valve core 2 does not play a throttling role, namely, only the first valve core 1 plays a throttling role during refrigerating; when heating, medium flows to the left side from the right side in fig. 2, the second valve core 2 and the first valve core 1 move leftwards under the pushing of the medium, when the first valve core 1 moves to the rightmost side of the deep sliding chute 14, the first valve core 1 stops moving, the end surface of the right end of the first valve core 1 is coplanar with the end surface of the leftmost end of the shallow sliding chute 23, at this time, if the second valve core 2 is at the leftmost end of the shallow sliding chute 23, the left end surface of the second valve core 2 is in sealing fit with the right end surface of the first valve core 1, only the first throttle hole 11 and the second throttle hole 21 between the two can pass through the medium, and the throttling effect is enhanced.
Example two
The present embodiment is different from the first embodiment in that: the first valve element 1 is fixedly mounted in the throttling space 8 with its outer periphery in close contact with the inner wall of the valve body 0 without the need for a deep layer and a guide ring 16, as shown in fig. 9.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (9)
1. A throttle pipe that uses on heat pump air conditioning equipment which characterized in that: the throttling pipe comprises a tubular valve body with a through hole, filter screens arranged in the through hole at two end parts of the valve body, a throttling space is formed between the filter screens at the two end parts, the throttling pipe further comprises a first valve core arranged in the throttling space, a second valve core far away from the first valve core during refrigeration and tightly attached to the first valve core during heating, a first throttling hole and a second throttling hole are respectively formed in the middle parts of the first valve core and the second valve core, a pressure relief hole is formed in the second valve core at the periphery of the second throttling hole, and the cross sectional area of the pressure relief hole and the cross sectional area of the second throttling hole are not smaller than 1/5 of the cross section of the through hole.
2. The throttle pipe of claim 1, wherein: the first valve core comprises a first valve core section and a second valve core section which is positioned on the right side of the first valve core section and is coaxially and fixedly connected with the first valve core section, the outer diameter of the second valve core section is larger than that of the first valve core section, and the second valve core section and the first valve core section are integrally formed.
3. The throttle pipe of claim 1, wherein: the first valve core is arranged on the left side of the second valve core, a deep sliding groove extending parallel to the axis of the valve body is formed in the inner side wall of the valve body, a deep protruding block matched with the deep sliding groove is arranged on the outer peripheral surface of the second valve core section, and the deep protruding block is connected in the deep sliding groove in a sliding mode.
4. The throttle pipe of claim 2, wherein: and the second valve core section is sleeved with a guide ring fixed in the valve body.
5. The throttle pipe of claim 1, wherein: the first valve core is arranged on the left side of the second valve core, the first valve core is fixedly arranged in the throttling space, the periphery of the first valve core is tightly attached to the inner wall of the valve body, a shallow sliding groove which extends parallel to the axis of the valve body is formed in the inner side wall of the valve body on the right side of the first valve core, a shallow protruding block matched with the shallow sliding groove is fixedly arranged on the side wall of the second valve core, and the shallow protruding block is connected in the shallow sliding groove in a sliding mode.
6. The throttle pipe of claim 5, wherein: the second valve core comprises a third valve core section and a fourth valve core section which is positioned on the right side of the third valve core section and is coaxially and fixedly connected with the third valve core section, the outer diameter of the fourth valve core section is smaller than that of the third valve core section, the four valve core sections and the third valve core section are integrally formed, and the shallow layer bump is arranged on the outer peripheral surface of the third valve core section.
7. The throttle pipe of claim 1, wherein: the filter screen is a two-way filter screen.
8. The throttle pipe of claim 1, wherein: the aperture of the first throttling hole is 0.5-5 mm.
9. The throttle pipe of claim 1, wherein: the aperture of the second throttling hole is 0.5-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921255408.8U CN210740808U (en) | 2019-08-05 | 2019-08-05 | Throttle pipe applied to heat pump air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921255408.8U CN210740808U (en) | 2019-08-05 | 2019-08-05 | Throttle pipe applied to heat pump air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210740808U true CN210740808U (en) | 2020-06-12 |
Family
ID=71111811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921255408.8U Expired - Fee Related CN210740808U (en) | 2019-08-05 | 2019-08-05 | Throttle pipe applied to heat pump air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210740808U (en) |
-
2019
- 2019-08-05 CN CN201921255408.8U patent/CN210740808U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200612 |