CN111664987A - Combined refrigerant pressure gauge for refrigerating unit and installation method thereof - Google Patents
Combined refrigerant pressure gauge for refrigerating unit and installation method thereof Download PDFInfo
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- CN111664987A CN111664987A CN202010549318.0A CN202010549318A CN111664987A CN 111664987 A CN111664987 A CN 111664987A CN 202010549318 A CN202010549318 A CN 202010549318A CN 111664987 A CN111664987 A CN 111664987A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/142—Multiple part housings
- G01L19/144—Multiple part housings with dismountable parts, e.g. for maintenance purposes or for ensuring sterile conditions
Abstract
The invention discloses a combined refrigerant pressure gauge for a refrigerating unit and an installation method thereof, belonging to the technical field of refrigerant pressure gauges and comprising a bottom plate, an outer cover and a pressure mechanism, wherein the pressure mechanism is connected to the bottom plate in a sliding manner and consists of a plurality of pressure components; the pressure assembly comprises a valve handle, a pressure gauge head screw pipe, a detection pipe, a refrigerant connection pipe, an output pipe, a vacuum pump connection pipe, a pressure detection device, a pointer and a gauge shell, and the valve handle is arranged above the left end of the pressure assembly. All parts can be disassembled and assembled, and the pressure components can be quickly arranged and aligned, so that the use of bolts is reduced, the installation steps are reduced, the installation difficulty is reduced, and the installation efficiency is improved; the quantity is variable, and the application range is wide.
Description
Technical Field
The invention relates to the technical field of refrigerant pressure gauges, in particular to a combined refrigerant pressure gauge for a refrigerating unit and an installation method of the combined refrigerant pressure gauge.
Background
The refrigerant pressure gauge is suitable for measuring low temperature or special refrigerant medium, is also called as a snow gauge or a Freon gauge and is used for measuring the pressure of various refrigeration systems or equipment internal refrigeration systems, such as air-conditioning equipment, a refrigeration house refrigeration system, an industrial water chiller, cold coal filling equipment, a central air conditioner and the like, has the same structure as that of a common pressure gauge, but has stricter technological requirements and stricter air tightness requirements, so that special welding flux and a detection method are adopted in the links of welding, leakage detection and the like to ensure that the refrigeration working medium is not leaked.
Patent No. CN201920773596.7 provides a portable refrigerant manometer, and the quantity of gear is two, two valve handles respectively with first valve handle and second valve handle swing joint, drive gear and a driven gear of two gears, first valve switch handle links to each other with drive gear, and second valve switch handle is direct to link to each other with the case. The middle part of the left side of the low-pressure detection pipe is fixedly communicated with a refrigerant connecting pipe, the middle part of the top of the refrigerant connecting pipe is fixedly communicated with a vacuum pump connecting pipe, and the middle part of the left side of the high-pressure detection pipe is fixedly communicated with a high-pressure output pipe;
the patent number CN201820915232.3 provides an R23 refrigerant pressure gauge, which comprises a shell, a joint, a dial plate and a movement, wherein a fastening screw is arranged at the center of one side surface of the shell in a threaded manner, a joint mounting seat is fixedly arranged at the center of one side surface of the shell through the fastening screw, and the joint is arranged at the center of the joint mounting seat in a threaded manner; the utility model discloses a portable electronic watch, including shell, fixed joint, core, rotation connecting rod, rotation spout, the shell side is rotated and is installed pointer adjust knob, the shell is kept away from and is connected a side fixed laminating and have the dial plate, the inside fixed joint of shell has the core, the core mid-mounting rotates and installs the rotation connecting rod, it keeps away from core one end side and rotates and install the rotation spout to rotate the connecting rod, it has the slider to rotate the inside slidable mounting of spout.
However, the refrigerant pressure gauge in the above patent can only be applied to one or two refrigerant machines, and for a refrigerant unit with a plurality of refrigerant machines, a single refrigerant pressure gauge needs to be sequentially installed on each refrigerant machine, so that the installation difficulty is high, and the installation efficiency is low.
Disclosure of Invention
The invention aims to provide a combined refrigerant pressure gauge for a refrigerating unit and an installation method thereof, wherein all parts can be disassembled and assembled, pressure components can be quickly arranged and aligned, the use of bolts is reduced, the installation steps are reduced, the installation difficulty is reduced, and the installation efficiency is improved; the quantity is variable, and the application range is wide, so that the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a combined refrigerant pressure gauge for a refrigerating unit comprises a bottom plate, an outer cover and a pressure mechanism, wherein the pressure mechanism is connected to the bottom plate in a sliding mode and consists of a plurality of pressure components;
the pressure assembly comprises a valve handle, a pressure gauge head screw pipe, a detection pipe, a refrigerant connection pipe, an output pipe, a vacuum pump connection pipe, a pressure detection device, a pointer and a meter shell, wherein the valve handle is arranged above the left end of the pressure assembly, the left end of the pressure assembly is connected with the pressure detection device through the pressure gauge head screw pipe, the pressure detection device is located inside the meter shell, the detection pipe is arranged on one side of the pressure gauge head screw pipe, and the refrigerant connection pipe, the output pipe and the vacuum pump connection pipe are arranged at the right end of the pressure assembly.
Furthermore, a sliding rail is arranged on the bottom plate, and a pressure mechanism is connected with the bottom plate in a sliding manner through the sliding rail.
Further, the middle part of watchcase is through bolt fixedly connected with pressure measurement, and pressure measurement has the manometer gauge outfit screw pipe through linking pipe connection, and wherein linking pipe one end has seted up the external screw thread, and the other end is seted up there is the internal thread.
Further, pressure components are four in total, and four pressure components are rectangular array and distribute on the bottom plate, and the dustcoat includes left end shell, inner shell and right-hand member shell, and the outside sliding connection of left end shell has the shell, and the outside both sides of inner shell sliding connection have shell and right-hand member shell respectively, and left end shell and shell junction, shell and inner shell junction, inner shell and right-hand member shell junction pass through bolt locking connection.
Further, pressure components is total three, and three pressure components is the rectangle array and distributes on the bottom plate, and the dustcoat includes left end shell, inner shell and right-hand member shell, and inner shell and right-hand member shell overlap each other, and the inside sliding connection respectively in both ends of shell has left end shell and right-hand member shell, and left end shell and shell junction, shell and right-hand member shell junction pass through bolt lock joint.
According to another aspect of the present invention, there is provided a method for installing a combined refrigerant pressure gauge for a refrigerating unit, comprising the steps of:
s101: assembling a gauge head, installing a pressure detection device in the gauge shell, fixing the pressure detection device by using a bolt, installing a pointer, and connecting the pressure detection device with a connecting pipeline;
s102: installing a pressure mechanism, namely installing a plurality of pressure components on a slide rail of a slave base plate and sliding along the slide rail until the pressure components are arranged into a rectangular array;
s103: installing an outer cover, vertically sleeving the outer cover on the pressure mechanism from top to bottom, and locking the side lugs and the bottom plate by using bolts;
s104: installing a gauge head, and screwing the connecting pipeline on a gauge head screw pipe of the pressure gauge;
s105: and installing a refrigerant pressure gauge.
Further, in S103, the outer cover is assembled in advance, the left end shell, the outer shell, the inner shell and the right end shell are straightened and unfolded, and the joints of the left end shell and the outer shell, the joints of the outer shell and the inner shell, and the joints of the inner shell and the right end shell are locked by using bolts.
Further, in S103, the outer cover is assembled in advance, the left end shell, the outer shell, the inner shell, and the right end shell are straightened and unfolded, then the right end shell is pushed leftward until the right end shell and the inner shell are overlapped, and the joint of the left end shell and the outer shell and the joint of the outer shell and the right end shell are locked by bolts.
Compared with the prior art, the invention has the beneficial effects that:
1. the combined refrigerant pressure gauge for the refrigerating unit and the installation method thereof adopt the combined refrigerant pressure gauge, each part of the refrigerant pressure gauge can be disassembled and assembled, when a certain part of the refrigerant pressure gauge is damaged, only the part needs to be replaced, and the maintenance cost is reduced;
2. according to the combined refrigerant pressure gauge for the refrigerating unit and the installation method of the combined refrigerant pressure gauge, each pressure assembly is connected to the bottom plate in a sliding mode through the sliding rail, when the combined refrigerant pressure gauge is installed, the pressure assemblies can be arranged and aligned quickly, the number of bolts is reduced, the number of installation steps is reduced, the installation difficulty is reduced, and the installation efficiency is improved;
3. according to the combined refrigerant pressure gauge for the refrigerating unit and the installation method thereof, the number of the pressure components can be reduced or increased according to actual needs, and when the pressure components are reduced, the volume of the refrigerant pressure gauge can be reduced only by detaching the pressure components and partially overlapping the outer covers corresponding to the pressure components, so that the refrigerant pressure gauge is variable in number and wide in application range.
Drawings
Fig. 1 is an overall structure diagram of a combined refrigerant pressure gauge for a refrigerating unit according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a pressure mechanism structure diagram of a combined refrigerant pressure gauge for a refrigerating unit according to a first embodiment of the present invention;
fig. 4 is an exploded view of a pressure assembly of a combined refrigerant pressure gauge for a refrigerating unit according to a first embodiment of the present invention;
fig. 5 is a connection view of a case of a combined refrigerant pressure gauge for a refrigerating unit according to a first embodiment of the present invention;
fig. 6 is an overall structure diagram of a combined refrigerant pressure gauge for a refrigerating unit according to a second embodiment of the present invention;
fig. 7 is a flow chart of an installation method of the combined refrigerant pressure gauge for the refrigerating unit according to the present invention.
In the figure: 1. a base plate; 11. a slide rail; 2. a housing; 21. a left end housing; 22. a housing; 23. an inner shell; 24. a right end housing; 3. a pressure mechanism; 31. a pressure assembly; 311. a valve handle; 312. a head screw tube of the pressure gauge; 313. a detection tube; 314. a refrigerant connecting pipe; 315. an output pipe; 316. a vacuum pump adapter tube; 317. a pressure detection device; 318. a pointer; 319. a watch case; 320. connecting the pipelines; 4. and (4) side ears.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-3, a combined refrigerant pressure gauge for a refrigerating unit comprises a bottom plate 1, an outer cover 2 and a pressure mechanism 3, wherein the pressure mechanism 3 is connected to the bottom plate 1 in a sliding manner, the pressure mechanism 3 is composed of a plurality of pressure components 31, the outer cover 2 is sleeved outside the pressure mechanism 3, side lugs 4 are arranged at four corners of the lower end of the outer cover 2, and the side lugs 4 are connected with the bottom plate 1 through bolts in a locking manner; the bottom plate 1 is provided with a slide rail 11, and a pressure mechanism 3 is connected with the slide rail 11 in a sliding manner.
Referring to fig. 4-5, the pressure assembly 31 includes a valve handle 311, a gauge head screw tube 312, a detection tube 313, a refrigerant connection tube 314, an output tube 315, a vacuum pump connection tube 316, a pressure detection device 317, a pointer 318, and a case 319, the valve handle 311 is disposed above the left end of the pressure assembly 31, the left end is connected to the pressure detection device 317 through the gauge head screw tube 312, the pressure detection device 317 is located inside the case 319, the middle part of the case 319 is fixedly connected to the pressure detection device 317 through a bolt, the pressure detection device 317 is connected to the gauge head screw tube 312 through a connecting tube 320, wherein, one end of the connecting pipeline 320 is provided with an external thread, the other end is provided with an internal thread for installing a gauge head, one side of a screw pipe 312 of the gauge head of the pressure gauge is provided with a detection pipe 313, and the right end of the pressure component 31 is provided with a refrigerant connecting pipe 314, an output pipe 315 and a vacuum pump connecting pipe 316;
Referring to fig. 7, in order to better show the flow of the installation method of the combined refrigerant pressure gauge for the refrigerating unit, the present embodiment provides an installation method of the combined refrigerant pressure gauge for the refrigerating unit, including the following steps:
s101: assembling a gauge head, installing a pressure detection device 317 inside a gauge shell 319, fixing the pressure detection device by using bolts, installing a pointer 318, and connecting the pressure detection device 317 with a connecting pipe 320; a transparent cover plate is arranged outside the pointer 318 and used for protecting the pointer 318, the cover plate needs to be buckled after the pointer 318 is installed, a combined refrigerant pressure gauge is adopted, all parts of the refrigerant pressure gauge can be disassembled and assembled, when one part of the refrigerant pressure gauge is damaged, only the part needs to be replaced, and the maintenance cost is reduced;
s102: installing a pressure mechanism 3, installing a plurality of pressure components 31 on the slide rails 11 of the slave base plate 1 and sliding along the slide rails until the pressure components are arranged into a rectangular array; the slide rail 11 is a T-shaped slide rail, so that the pressure components 31 are prevented from being separated from the bottom plate 1, the slide rail 11 is arranged to facilitate the mutual alignment of the pressure components 31, the use of bolts is reduced, the installation steps are simplified, the installation difficulty is reduced, and the installation efficiency is improved;
s103: installing an outer cover 2, vertically sleeving the outer cover 2 on a pressure mechanism 3 from top to bottom, and locking a side lug 4 and a bottom plate 1 by using a bolt; the outer cover 2 is assembled in advance, the left end shell 21, the outer shell 22, the inner shell 23 and the right end shell 24 are straightened and unfolded, and the joints of the left end shell 21 and the outer shell 22, the joints of the outer shell 22 and the inner shell 23, and the joints of the inner shell 23 and the right end shell 24 are locked by using bolts.
S104: installing a gauge head, and screwing the connecting pipeline 320 on the gauge head screw pipe 312 of the pressure gauge;
s105: installing a refrigerant pressure gauge; the valve handle 311 is used for controlling the circulation of the pressure assembly 31, the detection pipe 313 is connected with the detection device, the refrigerant connecting pipe 314 is connected to a refrigerant system of the freezer, the output pipe 315 is used for high-pressure output, and the vacuum pump connecting pipe 316 is connected to a vacuum pump.
Example two
Referring to fig. 6, the number of the pressure assemblies 31 is three, the three pressure assemblies 31 are distributed on the bottom plate 1 in a rectangular array, the outer cover 2 includes a left end shell 21, an outer shell 22, an inner shell 23 and a right end shell 24, the inner shell 23 and the right end shell 24 are overlapped with each other, the left end shell 21 and the right end shell 24 are respectively connected to the inner portions of the two ends of the outer shell 22 in a sliding manner, and the joint of the left end shell 21 and the outer shell 22 and the joint of the outer shell 22 and the right end shell 24 are connected through bolts in a locking manner.
Referring to fig. 7, in order to better show the flow of the installation method of the combined refrigerant pressure gauge for the refrigerating unit, the present embodiment provides an installation method of the combined refrigerant pressure gauge for the refrigerating unit, including the following steps:
s101: assembling a gauge head, installing a pressure detection device 317 inside a gauge shell 319, fixing the pressure detection device by using bolts, installing a pointer 318, and connecting the pressure detection device 317 with a connecting pipe 320; a transparent cover plate is arranged outside the pointer 318 and used for protecting the pointer 318, the cover plate needs to be buckled after the pointer 318 is installed, a combined refrigerant pressure gauge is adopted, all parts of the refrigerant pressure gauge can be disassembled and assembled, when one part of the refrigerant pressure gauge is damaged, only the part needs to be replaced, and the maintenance cost is reduced;
s102: installing a pressure mechanism 3, installing a plurality of pressure components 31 on the slide rails 11 of the slave base plate 1 and sliding along the slide rails until the pressure components are arranged into a rectangular array; the slide rail 11 is a T-shaped slide rail, so that the pressure components 31 are prevented from being separated from the bottom plate 1, the slide rail 11 is arranged to facilitate the mutual alignment of the pressure components 31, the use of bolts is reduced, the installation steps are simplified, the installation difficulty is reduced, and the installation efficiency is improved;
s103: installing an outer cover 2, vertically sleeving the outer cover 2 on a pressure mechanism 3 from top to bottom, and locking a side lug 4 and a bottom plate 1 by using a bolt; the cover 2 is assembled in advance, the left end shell 21, the outer shell 22, the inner shell 23 and the right end shell 24 are straightened and unfolded, then the right end shell 24 is pushed leftwards, until the right end shell 24 and the inner shell 23 are mutually overlapped, the joint of the left end shell 21 and the outer shell 22 is locked with the joint of the right end shell 24 through bolts, the number of the pressure components 31 can be reduced or increased according to actual needs, when the pressure components 31 are reduced, only the pressure components 31 need to be disassembled, the outer cover 2 corresponding to the pressure components 31 is partially overlapped, the volume of the refrigerant pressure gauge can be reduced, the quantity is variable, and the application range is wide.
S104: installing a gauge head, and screwing the connecting pipeline 320 on the gauge head screw pipe 312 of the pressure gauge;
s105: installing a refrigerant pressure gauge; the valve handle 311 is used for controlling the circulation of the pressure assembly 31, the detection pipe 313 is connected with the detection device, the refrigerant connecting pipe 314 is connected to a refrigerant system of the freezer, the output pipe 315 is used for high-pressure output, and the vacuum pump connecting pipe 316 is connected to a vacuum pump.
In summary, the following steps: the combined refrigerant pressure gauge for the refrigerating unit and the installation method thereof adopt the combined refrigerant pressure gauge, each part of the refrigerant pressure gauge can be disassembled and assembled, when a certain part of the refrigerant pressure gauge is damaged, only the part needs to be replaced, and the maintenance cost is reduced; each pressure assembly 31 is connected to the bottom plate 1 in a sliding mode through the sliding rail 11, when the pressure assemblies 31 are installed, the pressure assemblies 31 can be arranged and aligned quickly, the use of bolts is reduced, the installation steps are reduced, the installation difficulty is reduced, and the installation efficiency is improved; can reduce or increase pressure components' 31 quantity according to actual need, when reducing pressure components 31, only need be dismantling pressure components 31 to overlap the dustcoat 2 parts that pressure components 31 correspond, can reduce refrigerant manometer volume, the quantity is changeable, and application scope is wide.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions disclosed in the present invention and the equivalent alternatives or modifications thereof within the scope of the present invention.
Claims (8)
1. The combined refrigerant pressure gauge for the refrigerating unit is characterized by comprising a bottom plate (1), an outer cover (2) and a pressure mechanism (3), wherein the pressure mechanism (3) is connected onto the bottom plate (1) in a sliding mode, the pressure mechanism (3) is composed of a plurality of pressure components (31), the outer cover (2) is sleeved outside the pressure mechanism (3), side lugs (4) are arranged at four corners of the lower end of the outer cover (2), and the side lugs (4) are connected with the bottom plate (1) through bolts in a locking mode;
pressure components (31) include valve handle (311), manometer gauge outfit screw pipe (312), test tube (313), refrigerant takeover (314), output tube (315), vacuum pump takeover (316), pressure measurement device (317), pointer (318) and watchcase (319), the left end top of pressure components (31) is equipped with valve handle (311), and the left end is connected with pressure measurement device (317) through manometer gauge outfit screw pipe (312), pressure measurement device (317) are located inside watchcase (319), one side of manometer gauge outfit screw pipe (312) is equipped with test tube (313), the right-hand member of pressure components (31) is equipped with refrigerant takeover (314), output tube (315) and vacuum pump takeover (316).
2. The combined refrigerant pressure gauge for the refrigerating unit as claimed in claim 1, wherein the bottom plate (1) is provided with a slide rail (11), and the pressure mechanism (3) is slidably connected to the slide rail (11).
3. The combined refrigerant pressure gauge for the refrigerating unit as claimed in claim 1, wherein the middle portion of the case (319) is fixedly connected with a pressure detecting device (317) through a bolt, the pressure detecting device (317) is connected with a head screw pipe (312) of the pressure gauge through a connecting pipe (320), wherein one end of the connecting pipe (320) is provided with an external thread, and the other end is provided with an internal thread.
4. The combined refrigerant pressure gauge for the refrigerating unit as claimed in claim 1, wherein the number of the pressure assemblies (31) is four, the four pressure assemblies (31) are distributed on the bottom plate (1) in a rectangular array, the outer cover (2) comprises a left end shell (21), an outer shell (22), an inner shell (23) and a right end shell (24), the outer shell (22) is slidably connected to the outside of the left end shell (21), the outer shell (22) and the right end shell (24) are slidably connected to two sides of the outside of the inner shell (23), and the joint of the left end shell (21) and the outer shell (22), the joint of the outer shell (22) and the inner shell (23), and the joint of the inner shell (23) and the right end shell (24) are connected through bolt locking.
5. The combined refrigerant pressure gauge for the refrigerating unit as claimed in claim 1, wherein the number of the pressure assemblies (31) is three, the three pressure assemblies (31) are distributed on the bottom plate (1) in a rectangular array, the outer cover (2) comprises a left end shell (21), an outer shell (22), an inner shell (23) and a right end shell (24), the inner shell (23) and the right end shell (24) are overlapped, the left end shell (21) and the right end shell (24) are respectively connected to the inner parts of the two ends of the outer shell (22) in a sliding manner, and the joint of the left end shell (21) and the outer shell (22) and the joint of the outer shell (22) and the right end shell (24) are connected through bolts in a locking manner.
6. A method for installing a combined refrigerant pressure gauge for a refrigerating unit according to any one of claims 1 to 5, comprising the steps of:
s101: assembling a gauge head, installing a pressure detection device (317) in a gauge shell (319), fixing the pressure detection device by using bolts, installing a pointer (318), and connecting the pressure detection device (317) with a connecting pipe (320);
s102: installing a pressure mechanism (3), installing a plurality of pressure components (31) on a slide rail (11) of a slave base plate (1) and sliding along the slide rail until the pressure components are arranged into a rectangular array;
s103: installing an outer cover (2), vertically sleeving the outer cover (2) on a pressure mechanism (3) from top to bottom, and locking the side lugs (4) and the bottom plate (1) by using bolts;
s104: installing a gauge head, and screwing the connecting pipeline (320) on a gauge head screw pipe (312) of the pressure gauge;
s105: and installing a refrigerant pressure gauge.
7. The method of claim 6, wherein the outer cover (2) is assembled in advance in step S103, the left end shell (21), the outer shell (22), the inner shell (23) and the right end shell (24) are straightened and unfolded, and the joint of the left end shell (21) and the outer shell (22), the joint of the outer shell (22) and the inner shell (23), and the joint of the inner shell (23) and the right end shell (24) are locked by bolts.
8. The method of claim 6, wherein the outer cover (2) is assembled in advance in step S103, the left end housing (21), the outer housing (22), the inner housing (23) and the right end housing (24) are straightened and unfolded, the right end housing (24) is pushed leftward until the right end housing (24) and the inner housing (23) are overlapped, and the joint between the left end housing (21) and the outer housing (22) and the joint between the outer housing (22) and the right end housing (24) are fastened by bolts.
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| CN104833456A (en) * | 2015-05-29 | 2015-08-12 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Onsite detection device and method for pressure sensor of valve cooling system |
| CN208579866U (en) * | 2018-08-31 | 2019-03-05 | 国网福建省电力有限公司检修分公司 | Integral-type multiple groups meter automatic Verification detection device |
| CN208998997U (en) * | 2018-10-24 | 2019-06-18 | 河南朗博校准检测有限公司 | A kind of pressure gauge being conveniently replaceable |
| CN209117255U (en) * | 2019-01-02 | 2019-07-16 | 青岛琴益仪表有限公司 | A kind of boiler pressure gauge machine core detection device |
| CN210218796U (en) * | 2019-04-30 | 2020-03-31 | 台州朗讯工具股份有限公司 | Improved structure of refrigerant meter set |
| CN210571172U (en) * | 2019-09-23 | 2020-05-19 | 上海上实物业管理有限公司 | A device for multiple manometer real-time detection |
| KR102095271B1 (en) * | 2019-10-01 | 2020-03-31 | 조성민 | Pressure measuring system of mold cooling line |
| CN210688835U (en) * | 2019-11-01 | 2020-06-05 | 台州朗讯工具股份有限公司 | Multifunctional pressure-relieving type refrigerant meter set |
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Denomination of invention: Installation method of combined refrigerant pressure gauge for refrigeration unit Effective date of registration: 20211228 Granted publication date: 20210824 Pledgee: Ma'anshan branch of Bank of China Limited Pledgor: MAANSHAN EXACT INSTRUMENT CO.,LTD. Registration number: Y2021980016522 |
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