CN209446276U - Refrigeration machine on-line detecting instrument for safety valve - Google Patents
Refrigeration machine on-line detecting instrument for safety valve Download PDFInfo
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- CN209446276U CN209446276U CN201821993070.1U CN201821993070U CN209446276U CN 209446276 U CN209446276 U CN 209446276U CN 201821993070 U CN201821993070 U CN 201821993070U CN 209446276 U CN209446276 U CN 209446276U
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- safety valve
- refrigeration machine
- detecting instrument
- line detecting
- pressure
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Abstract
The utility model discloses a kind of refrigeration machine on-line detecting instrument for safety valve, carry out on-line checking, including machine assembly, hydraulic pressure unit, data processing unit, connector for the cracking pressure to refrigeration machine safety valve.When in use, data collection station real-time display goes out the force-bearing situation of flap, so that user can intuitively judge whether the cracking pressure of the safety valve is normal according to shown force-bearing situation.During being somebody's turn to do; refrigeration machine is not required to stop, and production carries out as usual, for the enterprises such as enterprise, large sized commercial center, office building; it efficiently solves not parking live level pressure, the problems such as safety valve cannot normally return the emergency processing of seat after opening, ensure that refrigeration machine long period is safely operated.
Description
Technical field
The present invention relates to detection device technical fields, more particularly, to a kind of refrigeration machine on-line detecting instrument for safety valve.
Background technique
Refrigeration machine safety valve is the important safety attachment of the civilian medium-and-large-sized refrigerator appliance of industrial enterprise.Due to safety valve
Overpressure protection apparatus is used as on refrigeration equipment and pipeline, therefore its performance is fine or not, whether operation conditions is good, is directly related to enterprise
The equipment of industry, large sized commercial center, office building etc., property, personnel are perfectly safe.Therefore, national regulation must to
Refrigeration machine safety valve carry out mandatory inspection " every year at least once ".However, process units must when carrying out mandatory inspection
It must stop, to disturb the continuity normally produced.
Summary of the invention
The object of the present invention is to provide a kind of refrigeration machine on-line detecting instrument for safety valve, it is with that can not shut down detection, really
Protect the successional feature of refrigerator operation.
The technical scheme adopted by the invention is that: refrigeration machine on-line detecting instrument for safety valve, for refrigeration machine safety valve
Cracking pressure carries out on-line checking, which includes valve seat, has medium channel, the upper end of the medium channel inside the valve seat
Opening is equipped with flap, which is equipped with safe pressure spring, which makes flap to Jie under the action of the safe pressure spring
The upper opening in matter channel forms effective sealing, meanwhile, on the valve seat be located at the flap above be additionally provided with rotation after can on
The adjusting nut of lower movement, the upper end of the safe pressure spring are withstood on the lower end surface of the adjusting nut to by rotating the adjusting spiral shell
Mother is adjusted the cracking pressure value of safety valve, and the refrigeration machine on-line detecting instrument for safety valve includes:
Machine assembly, the machine assembly include: the frame base for being fixed on the safety valve top, and lower end is connected the framework bottom
Seat and the adjustable cylinder bracket for being fixed on column top at least 2 root post upper and lower positions upwardly extended, are fixed on the oil
On jar support and inside has the lift cylinder of inner cavity, and seal cooperation is located at the interior intracavitary piston；
Hydraulic pressure unit, the hydraulic pressure unit include hydraulic cylinder, are connected with one by a check valve on the oil outlet of the hydraulic cylinder
Hydraulic tube；
Data processing unit, the data processing unit include: the data collection station for having gathered data collector, and signal connects
It is connected to the load cell of the data collection station；
Connector；And
The other end of the hydraulic tube is connected to the top of the inner cavity；
The top of the load cell and the lower part of the piston match, the top of lower part and the connector is connected；
The lower part of the connector and the safe pressure spring match.
The top of each column is bolted with 2 locking nuts, and cylinder bracket is equipped with and column is corresponding two-by-two
Perforation, the top of column is corresponding two-by-two to pass through corresponding perforation, and 2 locking nuts on the same column are stuck in phase
Above and below the perforation answered.
The piston is furnished with the reset spring for making it have the trend of moving up.
The lower part of the piston is equipped with downward opening connecting screw hole, meanwhile, the top of load cell, which is equipped with, to be screwed onto
Connecting screw in the connecting screw hole.
The connector includes the rigid rod that pole socket and upper end are connected in the pole socket lower part, wherein the load cell
Lower end is connected the pole socket, and the lower end of rigid rod is withstood on the upper end of safe pressure spring.
The hydraulic cylinder is hand-hydraulic cylinder.
The invention has the advantages that compared with the prior art: detection can not be shut down, it is ensured that the company of refrigerator operation
Continuous property.When in use, data collection station real-time display goes out the stress of flap to refrigeration machine on-line detecting instrument for safety valve of the invention
Situation, so that whether just user can intuitively judge the cracking pressure of the safety valve according to shown force-bearing situation
Often.During being somebody's turn to do, refrigeration machine is not required to stop, and production carries out as usual, looks forward to particularly with enterprise, large sized commercial center, office building etc.
For industry, not parking live level pressure is efficiently solved, the problems such as safety valve cannot normally return the emergency processing of seat after opening, guarantee
The safe operation of refrigeration machine long period.In other words, it avoids stopping refrigeration machine, does not need disassembly safety valve, both avoid cold media
The leakage of matter also solves the problems, such as refrigeration machine continuity operational requirements.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the front sectional view of the embodiment of the present invention.
In figure:
10, machine assembly, 11, frame base, 12, column, 121, locking nut, 13, cylinder bracket, 131, perforation, 14,
Lift cylinder, 141, inner cavity, 15, piston, 151, reset spring, 152, connecting screw hole；
20, hydraulic pressure unit, 21, hydraulic cylinder, 22, check valve, 23, hydraulic tube；
30, data processing unit, 31, data collection station, 32, load cell, 321, connecting screw；
40, connector, 41, pole socket, 42, rigid rod；
100, safety valve, 101, valve seat, 102, medium channel, 103, flap, 104, safe pressure spring, 105, adjusting nut.
Specific embodiment
Embodiment, as shown in Figure 1: refrigeration machine on-line detecting instrument for safety valve, for the unlatching pressure to refrigeration machine safety valve 100
The non-stop-machine on-line checking of power.The safety valve 100 includes valve seat 101, and having inside the valve seat 101 is usually lower end connection refrigeration
The medium channel 102 of medium, flap 103 is equipped at the upper end opening of the medium channel 102, which is equipped with safety
Pressure spring 104, the flap 103 make flap 103 to the upper opening shape of the medium channel 102 under the action of safe pressure spring 104
At effective sealing.Once that is, medium give the flap 103 upward pressure greater than setting safe pressure spring 104 give the flap
103 downward pressure, then the flap 103 can be moved up and be opened, and carry out pressure release to medium, it is ensured that the safety of operation.Together
When, the top that the flap 103 is located on the valve seat 101 is additionally provided with the adjusting nut 105 that can be moved up and down after rotation, the safety
The upper end of pressure spring 104 is withstood on the lower end surface of the adjusting nut 105 to by rotating the adjusting nut 105 to safety valve 100
Cracking pressure value be adjusted.
The refrigeration machine on-line detecting instrument for safety valve includes: machine assembly 10, hydraulic pressure unit 20, data processing unit 30, connects
The units such as fitting 40 or component.
Specifically:
The machine assembly 10 includes: the frame base 11 for being fixed on 100 top of safety valve, and lower end is connected the frame base
11 and at least 2 root posts 12 that upwardly extend, the adjustable cylinder bracket 13 for being fixed on 12 top of column in upper and lower position it is fixed
On the cylinder bracket 13 and inside has the lift cylinder 14 of inner cavity 141, seals the piston of cooperation being located in the inner cavity 141
15.That is, hydraulic oil can be entered positioned at the top of the piston 15 in the inner cavity 141, after the pressure change of hydraulic oil, make the piston
15 move up and down.
The hydraulic pressure unit 20 includes hydraulic cylinder 21, passes through a check valve 22 on the oil outlet of the hydraulic cylinder 21 and is connected with a liquid
Pressure pipe 23.
The data processing unit 30 includes: the data collection station 31 for having gathered data collector, and signal is connected to the number
According to the load cell 32 of acquisition terminal 31.
It is more specific:
The other end of the hydraulic tube 23 is connected to the top of the inner cavity 141.It accurately says, is that the other end of the hydraulic tube 23 connects
Pass to the top of the piston 15 in the inner cavity 141.
The top of the load cell 32 and the top of the matching of the lower part of the piston 15, lower part and the connector 40 are connected.
That is, the top of the load cell 32 is directly or indirectly connected, the piston 15, the lower end of the load cell 32 are direct or indirect
Be connected the connector 40, and the upper and lower part of the load cell 32 refers to 2 positions of induction pressure.
The lower part of the connector 40 and the safe pressure spring 104 match.That is, the upper end of the safe pressure spring 104 is direct or indirect
The lower part of the connector 40 is withstood on to give the connector 40 certain pressure.
Optimization:
Realizing upper and lower position adjustable mode of the cylinder bracket 13 on 12 top of column is: the top of each column 12 is equal
2 locking nuts 121 are bolted with, cylinder bracket 13 is equipped with and the corresponding perforation 131 two-by-two of column 12, the top two of column 12
Two is corresponding across corresponding perforation 131, and 2 locking nuts 121 on the same column 12 are stuck in corresponding perforation
Above and below in the of 131.That is, can easily adjust the height of cylinder bracket 13, and make its height after turn locking nut 121
It keeps stablizing.
The piston 15 is furnished with the reset spring 151 for making it have the trend of moving up.That is, in the initial state, the inner cavity
Preferably without hydraulic oil in 141.
The mode that the lower part on the top and the piston 15 of realizing the load cell 32 matches is: the lower part of the piston 15 is set
There is downward opening connecting screw hole 152, the top of the load cell 32 is equipped with the connection spiral shell being screwed onto the connecting screw hole 152
Bar 321.
The connector 40 includes the rigid rod 42 that pole socket 41 and upper end are connected in 41 lower part of pole socket.Wherein, which passes
The lower end of sensor 32 is connected the pole socket 41, and the lower end of rigid rod 42 is withstood on the upper end of safe pressure spring 104.At this point, the adjusting spiral shell
The center of mother 105 is preferably provided with through-hole, is withstood on the safe pressure spring 104 after passing through in order to rigid rod 42.
The hydraulic cylinder 21 is hand-hydraulic cylinder.That is, making the hydraulic cylinder 21 export certain pressure by pressing handle repeatedly
Hydraulic oil.
The working principle of the invention:
The data collection station 31 of set data collector input tested safety valve 100 expectation cracking pressure,
The medium channel 102 and the flap 103 form the sealed diameter of effective sealing surface and the pressure of 100 interior media of safety valve
After the numerical value such as power, according to formula:
Required additional lifting force=(expectation cracking pressure+interior media pressure) × sealing surface area,
Additional lifting force needed for calculating.
Then the range that the load cell 32 is selected according to required additional lifting force locks unidirectional on the hydraulic cylinder 21
Valve 22 starts to suppress, and hydraulic oil enters the top of the piston 15 in the inner cavity 141 of the lift cylinder 14, produces the piston 15
A raw downward active force.Stress condition is output to set by connecting lines such as data lines in real time by the load cell 32
The data collection station 31 of data collector, is shown in the display interface of the data collection station 31 then with real-time curve form
On.During being somebody's turn to do, the pressing force that the impressed pressure which generates downwards overcomes the safe pressure spring 104 upward is (safe
Equal in magnitude, contrary active force is generated after pressure spring compression.That is to say, safe pressure spring result from sealing surface pressing force and
The pressing force of adjusting nut is equal).Meanwhile with the increase of impressed pressure, the pressing force generated with the safe pressure spring 104 is gradually
It tends to balance, the sealing that the difference of impressed pressure and medium active force just overcomes the safe pressure spring 104 of the safety valve 100 to generate
Power.At this point, the safe pressure spring 104 is displaced, according to the conversion of kinetic energy and potential energy, directly show that additional force curve turns
Then point, the inflection point i.e. opening point of the safety valve 100 are acted on according to the force value of the point and safety valve pressure medium and medium
Effective area on the flap 103, can calculate the cracking pressure of the safety valve 100.Finally, the additional force curve of the safety valve
After there is inflection point, the check valve 22 on the hydraulic cylinder 21 is opened rapidly, discharges pressure, the reset spring of the lift cylinder 14
151 reset the piston 15 of the lift cylinder 14, and the safe pressure spring 104 of the safety valve 100 resets.
In conclusion refrigeration machine on-line detecting instrument for safety valve of the invention avoids stopping refrigeration machine, without dismantling safety valve,
Both the leakage of coolant media had been avoided, has also solved the problems, such as refrigeration machine continuity operational requirements.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content is applied directly or indirectly in other correlations
Technical field, be included within the scope of the present invention.
Claims (6)
- It, should 1. refrigeration machine on-line detecting instrument for safety valve carries out on-line checking for the cracking pressure to refrigeration machine safety valve (100) Safety valve (100) includes valve seat (101), has medium channel (102) inside the valve seat (101), the medium channel (102) it is upper Flap (103) are equipped at end opening, which is equipped with safe pressure spring (104), which presses safely at this Flap (103) is set to form effective sealing to the upper opening of the medium channel (102) under the action of spring (104), meanwhile, the valve seat (101) it is located at the adjusting nut (105) that is additionally provided with above the flap (103) and can move up and down after rotation on, this is pressed safely The upper end of spring (104) is withstood on the lower end surface of the adjusting nut (105) to by rotating the adjusting nut (105) to safety valve (100) cracking pressure value is adjusted, it is characterised in that: the refrigeration machine on-line detecting instrument for safety valve includes:Machine assembly (10), the machine assembly (10) they include: the frame base (11) for being fixed on safety valve (100) top, under End is connected the frame base (11) and at least 2 root posts (12) that upwardly extend, and upper and lower position is adjustable to be fixed on column (12) cylinder bracket (13) on top, is fixed on the cylinder bracket (13) and inside has the lift cylinder of inner cavity (141) (14), the piston (15) of cooperation being located in the inner cavity (141) is sealed；Hydraulic pressure unit (20), the hydraulic pressure unit (20) include hydraulic cylinder (21), pass through a list on the oil outlet of the hydraulic cylinder (21) A hydraulic tube (23) are connected with to valve (22)；Data processing unit (30), which includes: the data collection station for having gathered data collector (31), signal is connected to the load cell (32) of the data collection station (31)；Connector (40)；AndThe other end of the hydraulic tube (23) is connected to the top of the inner cavity (141)；The top of the load cell (32) and the top of the matching of the lower part of the piston (15), lower part and the connector (40) are solid Even；The lower part of the connector (40) and the safe pressure spring (104) match.
- 2. refrigeration machine on-line detecting instrument for safety valve according to claim 1, it is characterised in that: each column (12) Top is bolted with 2 locking nuts (121), and cylinder bracket (13) is equipped with and column (12) corresponding perforation (131) two-by-two, The top of column (12) is corresponding two-by-two to pass through corresponding perforation (131), and 2 locking nuts on the same column (12) (121) it is stuck in above and below corresponding perforation (131).
- 3. refrigeration machine on-line detecting instrument for safety valve according to claim 1, it is characterised in that: the piston (15) is equipped with making It has the reset spring (151) for the trend that moves up.
- 4. refrigeration machine on-line detecting instrument for safety valve according to claim 1, it is characterised in that: the lower part of the piston (15) Equipped with downward opening connecting screw hole (152), meanwhile, the top of load cell (32), which is equipped with, is screwed onto the connecting screw hole (152) connecting screw (321) in.
- 5. refrigeration machine on-line detecting instrument for safety valve according to claim 1, it is characterised in that: the connector (40) includes Pole socket (41) and upper end are connected in the rigid rod (42) of pole socket (41) lower part, wherein the lower end of the load cell (32) is solid The even pole socket (41), the lower end of rigid rod (42) is withstood on the upper end of safe pressure spring (104).
- 6. refrigeration machine on-line detecting instrument for safety valve according to claim 1, it is characterised in that: the hydraulic cylinder (21) is hand Hydrodynamic cylinder pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993070.1U CN209446276U (en) | 2018-11-29 | 2018-11-29 | Refrigeration machine on-line detecting instrument for safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993070.1U CN209446276U (en) | 2018-11-29 | 2018-11-29 | Refrigeration machine on-line detecting instrument for safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209446276U true CN209446276U (en) | 2019-09-27 |
Family
ID=68013252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821993070.1U Active CN209446276U (en) | 2018-11-29 | 2018-11-29 | Refrigeration machine on-line detecting instrument for safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209446276U (en) |
-
2018
- 2018-11-29 CN CN201821993070.1U patent/CN209446276U/en active Active
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