CN117231777A - Large-scale compressor gas-liquid circuit high flux shutoff valve - Google Patents
Large-scale compressor gas-liquid circuit high flux shutoff valve Download PDFInfo
- Publication number
- CN117231777A CN117231777A CN202311150796.4A CN202311150796A CN117231777A CN 117231777 A CN117231777 A CN 117231777A CN 202311150796 A CN202311150796 A CN 202311150796A CN 117231777 A CN117231777 A CN 117231777A
- Authority
- CN
- China
- Prior art keywords
- valve
- cavity
- core
- valve rod
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 34
- 230000004907 flux Effects 0.000 title claims description 4
- 238000007789 sealing Methods 0.000 claims abstract description 76
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 229910001369 Brass Inorganic materials 0.000 claims description 7
- 239000010951 brass Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 abstract description 10
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The large-flux shutoff valve for the gas-liquid loop of the large-scale compressor comprises a valve main body, a valve rod, a valve closing core, an opening core, an end cover and a service cover assembly, wherein the valve main body comprises a valve core cavity, a liquid return interface, a valve opening sealing cavity, a valve rod channel, a service interface and a liquid outlet; the valve rod comprises a seat rod part, an external thread part, a polish rod part and a screw driver groove, and the valve closing core and the valve opening core are arranged on the seat rod part; the valve rod is provided with a valve rod channel, a valve opening sealing cavity, a valve closing valve core, a valve opening sealing cavity, a valve rod channel, a valve rod sealing cavity, a valve opening sealing cavity and a valve rod channel; the end cover is screwed and sealed with the valve rod channel, and the valve rod extends into the end cover; the service cover assembly is connected with the service interface. Setting a valve body valve opening core seat and setting a valve opening core; in the fully-opened conduction state, the valve core and the valve core seat are matched and sealed, so that the refrigerant is prevented from entering the valve rod channel and leaking in the conduction state; in a semi-conducting state, the polish rod part and the valve rod channel are sealed, and refrigerant leakage is prevented.
Description
Technical Field
The invention relates to a large-flux device of a gas-liquid loop of a large-scale compressor, in particular to a large-flux shutoff valve used by a compressor of a large-scale commercial refrigeration air-conditioning unit.
Background
At present, in the prior art, chinese patent 201921790300.9, an air conditioner stop valve, including valve body, valve rod and takeover, the valve rod is installed on the valve body, characterized by: the valve body and the valve rod are made of aluminum alloy materials, the connecting pipe is made of red copper, the connecting pipe is inserted into the mounting cavity at the bottom of the valve body and is fixed in a sealing mode through a fixing structure, and a mounting gap of 0.0-0.06 mm is reserved between the outer side wall of the connecting pipe and the inner wall of the mounting cavity of the valve body. The problems are: there is the hidden danger of leaking in valve rod and valve body cooperation department.
At present, the prior art in China has the advantages that a large-flux shutoff valve of a compressor of a large commercial air conditioning unit with more than 30 pieces is blank, and the import prospect of the domestic design and manufacturing of alternative analogues is wide.
Disclosure of Invention
The purpose of the invention is that: the large-flux shutoff valve for the gas-liquid loop of the large-scale compressor has the characteristics of large-flux refrigerating capacity adjustment, long service life, hidden danger elimination and leakage prevention.
The invention is realized in the following way: a large-scale compressor gas-liquid circuit large flux shutoff valve is characterized in that: comprises a valve main body, a valve rod, a valve closing core, a valve opening core, an end cover and a service cover assembly,
the valve main body comprises a valve core cavity, a liquid return interface, a valve opening sealing cavity, a valve rod channel, a service interface and a liquid outlet arranged on the valve core cavity, wherein the liquid return interface, the valve core cavity, the valve opening sealing cavity and the valve rod channel are in a straight line, and the service interface is communicated with the valve rod channel; the connecting part of the valve core cavity and the reflux interface is used as a valve closing seat;
an internal thread part is arranged in the valve rod channel,
the valve rod comprises a seat rod part, an external thread part, a polish rod part and a screw driver groove arranged at the end part, and the closing valve core and the opening valve core are arranged on the seat rod part;
the valve rod is provided with a valve rod channel, a valve opening sealing cavity, a valve closing valve core, a valve opening sealing cavity, a valve rod channel, a valve rod sealing cavity, a valve opening sealing cavity and a valve rod channel; the end cover is screwed with the suspension end of the valve rod channel and sealed, and the valve rod extends into the end cover; the service cover assembly is connected with the service interface and can be detached.
The large-flux shutoff valve for the gas-liquid loop of the large-scale compressor is characterized in that: the closed valve core is in a truncated cone shape, the open valve core is in a truncated cone shape, and the bottom round end of the closed valve core is opposite to the bottom round end of the open valve core and has a distance;
the valve closing core is in sealing fit with the valve closing seat and the valve opening core is in sealing fit with the valve opening sealing cavity line.
The large-flux shutoff valve for the gas-liquid loop of the large-scale compressor is characterized in that: the valve body is made of brass, and the valve stem is made of stainless steel material.
The large-flux shutoff valve for the gas-liquid loop of the large-scale compressor is characterized in that: also comprises a sealing ring, wherein the sealing ring is arranged on the inner surface of the sealing ring,
the valve rod channel is provided with an annular bulge, and the annular bulge is provided with a sealing ring groove;
the sealing ring is arranged in the sealing ring groove, and the polish rod part of the valve rod is in sliding fit with and sealed with the sealing ring.
The large-flux shutoff valve for the gas-liquid loop of the large-scale compressor is characterized in that: the hollow end of the valve rod channel is provided with a sealing cavity, and the sealing cavity is provided with internal threads;
the sealing gasket and the fastening guide nut are also included;
the fastening guide nut comprises a rod channel, an external thread connecting part, a flange part and a hexagonal part for the rotation of the rotary tool;
the sealing gasket is arranged in the sealing cavity, and the external thread connecting part is screwed with the internal thread and compresses the sealing gasket; the valve rod is in sliding fit with the sealing gasket and the rod channel.
The large-flux shutoff valve for the gas-liquid loop of the large-scale compressor is characterized in that: the service interface is sequentially provided with an external thread part, a cylindrical head part and a conical frustum-shaped shoulder part arranged at the end part of the cylindrical head part;
the service cover assembly includes a fastening nut and a copper cap,
the fastening nut comprises an internal thread cavity, a cavity avoiding cavity, a frustum-shaped compression cavity and a containing cavity;
the copper cap part comprises a spherical part and a truncated cone-shaped sleeve part;
the cone frustum-shaped shoulder is inserted into the cone frustum-shaped sleeve part; the internal thread cavity is screwed with the external thread part, the frustum-shaped compression cavity is matched with the frustum-shaped sleeve part, and the spherical part extends into the accommodating cavity.
The large-flux shutoff valve for the gas-liquid loop of the large-scale compressor is characterized in that: the valve body is formed by hot forging a lead brass material through a 400T press.
The invention relates to a large-flux shutoff valve for a large-scale compressor gas-liquid circuit, which is characterized in that a valve main body is provided with a valve core opening seat and a valve core opening seat; in the fully-opened conduction state, the valve core and the valve core seat are matched and sealed, so that the refrigerant is prevented from entering the valve rod channel and leaking in the conduction state; in a semi-conducting state, the polish rod part and the valve rod channel are sealed, and refrigerant leakage is prevented.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a view a-a of fig. 1.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, a large-scale compressor gas-liquid circuit large-flux shutoff valve comprises a valve main body 1, a valve rod 2, a valve closing core 31, a valve opening core 32, an end cover 4 and a service cover assembly 5,
the valve main body 1 comprises a valve core cavity 11, a liquid return interface 12, a valve opening sealing cavity 13, a valve rod channel 14, a service interface 15 and a liquid outlet 16 arranged on the valve core cavity 11, wherein the liquid return interface 12, the valve core cavity 11, the valve opening sealing cavity 13 and the valve rod channel 14 are arranged on the same straight line; the service interface 15 is communicated with the valve rod channel 14 and is perpendicular to the valve rod channel; the connecting position of the valve core cavity 11 and the reflux interface 12 is used as a valve closing seat 17;
an internal threaded portion 141 is provided within the stem passageway 14,
the valve rod 2 comprises a seat rod part, an external thread part 21, a polish rod part 22 and a screw driver groove arranged at the end part, and a closing valve core 31 and an opening valve core 32 are arranged on the seat rod part; the closing valve core 31, the opening valve core 32 and the external thread part 21 are sequentially arranged;
the valve closing core 31 and the valve opening core 32 are positioned in the valve core cavity 11, the valve closing core 31 is matched with the valve closing seat 17, the valve opening core 32 is matched with the valve opening sealing cavity 13, the external thread part 21 and the internal thread part 141 are screwed, and the polish rod part 22 is in sliding fit and sealing with the valve rod channel 14; the end cover 4 is screwed with the suspension end of the valve rod channel 14, and the polish rod part 22 of the valve rod 2 extends into the end cover 4; the service cover assembly 5 and the service interface 15 are connected and detachable;
as shown in the left half of fig. 2, the state in which the valve closing body 31 and the valve closing seat 17 are engaged, and the state in which the valve opening body 32 is separated from the valve opening seal chamber 13 is a closed state; as shown in the right half of fig. 2, the valve closing element 31 and the valve closing seat 17 are separated, and the valve opening element 32 is in a closed state in contact with the valve opening seal cavity 13; in the conducting state, the refrigerant is communicated with the liquid outlet 16 through the reflux interface 12, the valve core cavity 11. By adopting the structure, the refrigerant can be effectively prevented from entering the valve rod channel and leakage is prevented.
As a further improvement of the invention: the closed valve core 31 is in a truncated cone shape, the open valve core 32 is in a truncated cone shape, and the bottom round end of the closed valve core 31 is opposite to the bottom round end of the open valve core 32 with a space. The valve core 31 adopts the structure, the valve core 31 extends into the reflux interface from the valve core cavity, and the intersection of the peripheral surface, the liquid return interface and the valve core cavity is tightly sealed and matched to form a linear seal, so that the refrigerant is prevented from entering the valve core cavity in a cut-off state;
the valve opening core 32 is in a truncated cone shape, and with the structure, the valve opening core extends into the valve opening sealing cavity 13 and is tightly matched with the opening end to form a linear seal, so that refrigerant is effectively prevented from entering a valve rod channel in a conducting state.
As a further improvement of the invention: the valve body 1 is formed from a 400T press hot forged lead brass material.
The valve rod 2 is made of stainless steel materials; the valve rod 2, the valve closing core 31 and the valve opening core 32 are integrally manufactured and formed by stainless steel materials; corrosion-resistant, stress-resistant, ultra-low temperature extremely cold resistant and weather resistant at-40 ℃ and weather resistant at 120 ℃ when subjected to high temperature and intense heat;
the hardness of brass is smaller than that of stainless steel, and the valve rod is driven by the external threads of the screw rod and the internal threads in the valve rod channel, so that the valve rod moves, such as in a cut-off state, the valve closing core 31 is tightly matched with the valve closing seat 17, and the sealing performance and effect are improved. The sealing torque range is large by adopting a hard-sealing stainless steel and lead brass hard-soft matching wire sealing structure.
As a further improvement of the invention: also comprises a sealing ring 6,
the valve rod channel 14 is provided with an annular bulge 142, and the annular bulge 142 is provided with a sealing ring groove;
the sealing ring 6 is arranged in the sealing ring groove, and the polish rod part 22 of the valve rod 2 is in sliding fit and sealing with the sealing ring 6. In the state of the valve opening and the semi-conducting process, the smooth part of the valve rod is tightly matched with the sealing O ring and the gasket for sealing, and the refrigerant is prevented from leaking outside in the operating state of the valve opening and the valve closing process and in the state of the valve opening and the semi-conducting process. With this structure, the double seal is formed by the cooperation of the valve opening core 32 and the valve opening seal chamber 13.
As a further improvement of the invention: the suspension end of the valve rod channel 14 is provided with a sealing cavity 143, and the sealing cavity 143 is provided with internal threads;
also comprises a sealing gasket 7 and a fastening guide nut 8;
the fastening guide nut 8 includes a rod passage 81, an externally threaded connecting portion, a flange portion 82, and a hexagonal portion 83 for rotation of the rotary tool;
the sealing gasket 7 is arranged in the sealing cavity 143, the external thread connecting part is screwed with the internal thread and compresses the sealing gasket, and the flange part 82 is matched with the end part of the sealing cavity 143; the valve stem 2 is slidably fitted and sealed with the packing 7 and the stem passage 81.
The service interface 15 is sequentially provided with an external thread part 151, a cylindrical head 152 and a truncated cone-shaped shoulder 153 arranged at the end part of the cylindrical head; the service interface 15 is used for detecting pressure or filling refrigerant;
the service cover assembly 5 includes a fastening nut 51 and a copper cap 52, and the service cover assembly 5 is detachable;
the fastening nut 51 comprises an internal thread cavity 511, a avoidance cavity 512, a frustum-shaped compression cavity 513 and a containing cavity 514;
the copper cap 52 includes a spherical portion and a truncated cone-shaped sleeve portion;
the truncated cone-shaped shoulder 153 is inserted into the truncated cone-shaped sleeve of the copper cap 52; the internal thread cavity 511 and the external thread 151 are screwed together, the truncated cone-shaped pressing cavity 513 is matched with the truncated cone-shaped sleeve part of the copper cap part 52, and the spherical part extends into the accommodating cavity 513.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A large-scale compressor gas-liquid circuit large flux shutoff valve which characterized in that: comprises a valve main body, a valve rod, a valve closing core, a valve opening core, an end cover and a service cover assembly,
the valve main body comprises a valve core cavity, a liquid return interface, a valve opening sealing cavity, a valve rod channel, a service interface and a liquid outlet arranged on the valve core cavity, wherein the liquid return interface, the valve core cavity, the valve opening sealing cavity and the valve rod channel are in a straight line, and the service interface is communicated with the valve rod channel; the connecting part of the valve core cavity and the reflux interface is used as a valve closing seat;
an internal thread part is arranged in the valve rod channel,
the valve rod comprises a seat rod part, an external thread part, a polish rod part and a screw driver groove arranged at the end part, and the closing valve core and the opening valve core are arranged on the seat rod part;
the valve rod is provided with a valve rod channel, a valve opening sealing cavity, a valve closing valve core, a valve opening sealing cavity, a valve rod channel, a valve rod sealing cavity, a valve opening sealing cavity and a valve rod channel; the end cover is screwed with the suspension end of the valve rod channel and sealed, and the valve rod extends into the end cover; the service cover assembly is connected with the service interface and can be detached.
2. The large compressor gas-liquid circuit high-throughput shutoff valve of claim 1, wherein: the closed valve core is in a truncated cone shape, the open valve core is in a truncated cone shape, and the bottom round end of the closed valve core is opposite to the bottom round end of the open valve core and has a distance;
the valve closing core is in sealing fit with the valve closing seat and the valve opening core is in sealing fit with the valve opening sealing cavity line.
3. The large compressor gas-liquid circuit high-throughput shutoff valve of claim 1, wherein: the valve body is made of brass, and the valve stem is made of stainless steel material.
4. The large compressor gas-liquid circuit high-throughput shutoff valve of claim 1, wherein: also comprises a sealing ring, wherein the sealing ring is arranged on the inner surface of the sealing ring,
the valve rod channel is provided with an annular bulge, and the annular bulge is provided with a sealing ring groove;
the sealing ring is arranged in the sealing ring groove, and the polish rod part of the valve rod is in sliding fit with and sealed with the sealing ring.
5. The large compressor gas-liquid circuit high-throughput shutoff valve of claim 4, wherein: the hollow end of the valve rod channel is provided with a sealing cavity, and the sealing cavity is provided with internal threads;
the sealing gasket and the fastening guide nut are also included;
the fastening guide nut comprises a rod channel, an external thread connecting part, a flange part and a hexagonal part for the rotation of the rotary tool;
the sealing gasket is arranged in the sealing cavity, and the external thread connecting part is screwed with the internal thread and compresses the sealing gasket; the valve rod is in sliding fit with the sealing gasket and the rod channel.
6. A large compressor gas-liquid circuit high-throughput shut-off valve according to claim 1, 2, 3, 4 or 5, wherein: the service interface is sequentially provided with an external thread part, a cylindrical head part and a conical frustum-shaped shoulder part arranged at the end part of the cylindrical head part;
the service cover assembly includes a fastening nut and a copper cap,
the fastening nut comprises an internal thread cavity, a cavity avoiding cavity, a frustum-shaped compression cavity and a containing cavity;
the copper cap part comprises a spherical part and a truncated cone-shaped sleeve part;
the cone frustum-shaped shoulder is inserted into the cone frustum-shaped sleeve part; the internal thread cavity is screwed with the external thread part, the frustum-shaped compression cavity is matched with the frustum-shaped sleeve part, and the spherical part extends into the accommodating cavity.
7. A large compressor gas-liquid circuit high-throughput shut-off valve according to claim 1, 2, 3, 4 or 5, wherein: the valve body is formed by hot forging a lead brass material through a 400T press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311150796.4A CN117231777A (en) | 2023-09-06 | 2023-09-06 | Large-scale compressor gas-liquid circuit high flux shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311150796.4A CN117231777A (en) | 2023-09-06 | 2023-09-06 | Large-scale compressor gas-liquid circuit high flux shutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117231777A true CN117231777A (en) | 2023-12-15 |
Family
ID=89095926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311150796.4A Pending CN117231777A (en) | 2023-09-06 | 2023-09-06 | Large-scale compressor gas-liquid circuit high flux shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117231777A (en) |
-
2023
- 2023-09-06 CN CN202311150796.4A patent/CN117231777A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214305495U (en) | Stop valve and air conditioning system with same | |
| US9140469B2 (en) | Refrigeration valve block | |
| US6289930B1 (en) | Refrigerant expansion device having combined piston orifice valve and solenoid-actuated closure | |
| CN117231777A (en) | Large-scale compressor gas-liquid circuit high flux shutoff valve | |
| WO2023088460A1 (en) | Stop valve | |
| WO2007086290A1 (en) | Closing valve and air conditioner | |
| CN209876100U (en) | Electromagnetic expansion valve | |
| WO2023093665A1 (en) | Globe valve | |
| EP1473496B1 (en) | Motor actuated flow-rate adjustment valve for fluids, particularly refrigeration fluids | |
| CN215059491U (en) | Stop valve and air conditioning system with same | |
| CN203230861U (en) | Stop valve for air conditioner | |
| WO2022012303A1 (en) | Stop valve | |
| CN214789171U (en) | Stainless steel reversing valve seat structure for air conditioner | |
| CN211344011U (en) | Novel anti-leakage plug | |
| CN210372214U (en) | Water tap | |
| CN211202889U (en) | Ultrahigh pressure blowoff valve | |
| CN203641522U (en) | Stop valve | |
| CN218094353U (en) | Fixed ball valve | |
| CN201818893U (en) | Stop valve for pipeline connection | |
| CN1179516A (en) | Thermal expansion valve for air-conditioner of automobile | |
| CN217207749U (en) | Air conditioner stop valve and air conditioner | |
| CN201236949Y (en) | Sealing type stop valve | |
| CN2476684Y (en) | Outer balance and internal temp.-sensing heating-power expansion valve | |
| CN212718068U (en) | Valve device | |
| CN215638156U (en) | Air conditioner refrigeration integral type valve rod stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |