CN216111259U - Single screw compressor with liquid break and liquid impact protection device - Google Patents
Single screw compressor with liquid break and liquid impact protection device Download PDFInfo
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- CN216111259U CN216111259U CN202121531359.3U CN202121531359U CN216111259U CN 216111259 U CN216111259 U CN 216111259U CN 202121531359 U CN202121531359 U CN 202121531359U CN 216111259 U CN216111259 U CN 216111259U
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Abstract
The utility model discloses a single screw compressor with a liquid break and liquid impact protection device, which comprises a cylinder, a compressor and a liquid level detection mechanism, wherein a liquid storage cavity is arranged in a shell of the compressor, the cylinder is arranged on the compressor and is communicated with the liquid storage cavity, the liquid level detection mechanism is arranged in an inner cavity of the cylinder, and the liquid level detection mechanism is used for detecting an ultra-high limit liquid level and an ultra-low limit liquid level in the liquid storage cavity and converting the ultra-high limit liquid level and the ultra-low limit liquid level into signals to be output so as to control the compressor to stop running or prohibit starting. The utility model can carry out liquid break protection or liquid impact protection on the compressor and prevent the compressor from being damaged.
Description
Technical Field
The utility model relates to the technical field of single screw compressors, in particular to a single screw compressor with a liquid break and liquid impact protection device.
Background
The existing single-screw compressor often needs liquid spraying cooling and lubricating, liquid cannot be supplied due to the fact that a liquid supply system fails when the compressor runs in the liquid spraying process of the compressor, the compressor runs under the condition of liquid shortage, the machine is damaged and burned down, and severe loss is generated; in addition, in the shutdown process of the compressor, if a liquid level system fails, liquid supply is not stopped in time, so that the liquid level in the compressor is too high, the liquid amount is too much, and the compressor is directly started without detection and protection, so that liquid impact of the compressor can be caused, namely the compressor belongs to variable capacity, and liquid cannot be compressed, so that the compressor is damaged; during the operation of the compressor, the liquid level is too high, the possibility of liquid hammer also occurs, and the same problem can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a single screw compressor with a liquid break and liquid impact protection device, which can perform liquid break protection or liquid impact protection on the compressor and prevent the compressor from being damaged.
The utility model is realized by the following technical scheme: the utility model provides a single screw compressor with disconnected liquid and liquid hit protection device, includes barrel, compressor, liquid level detection mechanism, the inside of the casing of compressor is provided with the stock solution chamber, the barrel sets up on the compressor, and with stock solution chamber intercommunication, liquid level detection mechanism sets up the inner chamber of barrel, liquid level detection mechanism is used for detecting super high limit liquid level and super low limit liquid level in the stock solution chamber to convert into signal output, with control the compressor stall or forbid the start-up.
Further: the two ends of the barrel are connected with the side cover of the compressor through pipelines respectively, the inner cavity of the barrel is communicated with the liquid storage cavity of the compressor, and the inner cavity of the barrel and the liquid level in the liquid storage cavity keep the same height.
Further: the both ends of barrel respectively through the pipeline with the upside and the downside of the casing of compressor are connected, just the inner chamber of barrel with the stock solution chamber intercommunication of compressor, the inner chamber of barrel with the liquid level in the stock solution intracavity keeps the same height.
Further: the liquid level detection mechanism comprises a guide rod, the guide rod is fixed in the inner cavity of the barrel through a nut, an A floating ball switch and/or a B floating ball switch are/is arranged on the guide rod, the A floating ball switch is used for detecting the ultra-high limit liquid level in the liquid storage cavity of the compressor, the B floating ball switch is used for detecting the ultra-low limit liquid level in the liquid storage cavity of the compressor, a signal wire is arranged on the guide rod, and the signal wire is connected with the A floating ball switch and/or the B floating ball switch.
Further: the A floating ball switch comprises a first floating ball, a first magnetic switch, a first upper limit ring and a first lower limit ring, the first upper limit ring and the first lower limit ring are respectively arranged on the guide rod, the first magnetic switch is arranged in the guide rod, the first magnetic switch is located in the middle between the first upper limit ring and the first lower limit ring, the first floating ball is slidably sleeved on the guide rod, and the first floating ball is located between the first upper limit ring and the first lower limit ring.
Further: the float ball switch B comprises a second float ball, a second magnetic switch, a second upper limit ring and a second lower limit ring, the second upper limit ring and the second lower limit ring are respectively arranged on the guide rod, the second magnetic switch is arranged in the guide rod, the second magnetic switch is located in the middle between the second upper limit ring and the second lower limit ring, the second float ball is slidably sleeved on the guide rod, and the second float ball is located between the second upper limit ring and the second lower limit ring.
Further: the pipeline is provided with a water drainage hole for draining liquid when the liquid level reaches an ultrahigh limit liquid level, the water drainage hole is provided with an electromagnetic valve, and the electromagnetic valve is controlled to be opened and closed by a signal sent by the float switch A.
Further: the pipeline is provided with a water drainage hole for draining liquid when the liquid reaches an ultrahigh limit liquid level, and the water drainage hole is provided with a manual ball valve or a screw plug.
The utility model has the beneficial effects that:
compared with the prior art, the cylinder is arranged on the side cover of the compressor, the inner cavity of the cylinder is communicated with the liquid storage cavity of the compressor, when the liquid level in the liquid storage cavity rises or falls, the liquid level in the inner cavity of the cylinder rises or falls simultaneously, the guide rod is arranged in the inner cavity of the cylinder, the A float switch and/or the B float switch are arranged on the guide rod, when liquid is sprayed into the compressor for cooling, the liquid level in the liquid storage cavity of the compressor is detected through the B float switch, and when the B float switch detects that the liquid level in the liquid storage cavity reaches the ultra-low limit alarm position, the compressor is controlled to stop, so that the liquid-break protection function is realized, and the compressor is prevented from being damaged; when the float switch A detects that the liquid level in the liquid storage cavity reaches the ultra-high limit alarm position, the compressor is controlled to stop or is prohibited to start, liquid impact protection on the compressor is achieved, and the compressor is prevented from being damaged.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a third structure according to an embodiment of the present invention.
Description of reference numerals: 1-cylinder, 11-pipeline, 2-compressor, 21-liquid storage cavity, 22-side cover, 23-shell, 3-guide rod, 31-signal line, 4-nut, 5-A float switch, 51-first float ball, 52-first upper limit ring, 53-first lower limit ring, 6-B float switch, 61-second float ball, 62-second lower limit ring, 63-second upper limit ring and 7-water discharge hole.
Detailed Description
The first embodiment is as follows: referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a single screw compressor with a liquid break and liquid impact protection device provided by the present invention, which includes a cylinder 1, a compressor 2, and a liquid level detection mechanism, wherein a liquid storage cavity 21 is provided inside a casing of the compressor 2, the cylinder 1 is disposed on the compressor 2 and is communicated with the liquid storage cavity 21, the liquid level detection mechanism is disposed in an inner cavity of the cylinder 1, and the liquid level detection mechanism is configured to detect an ultra-high limit liquid level and an ultra-low limit liquid level in the liquid storage cavity 21 and convert the ultra-high limit liquid level and the ultra-low limit liquid level into a signal to output to control the compressor 2 to stop operation or prohibit starting.
The two ends of the cylinder 1 are respectively connected with the side cover 22 of the compressor 2 through the pipeline 11, the inner cavity of the cylinder 1 is communicated with the liquid storage cavity 21 of the compressor 2, and the inner cavity of the cylinder 1 and the liquid level in the liquid storage cavity 21 keep the same height.
In this embodiment, fig. 1 is a schematic structural diagram of the barrel 11 installed on the left side cover of the compressor 2, two ends of the barrel 1 may also be connected to the upper side and the lower side of the casing 23 of the compressor 2 through the pipes 11, respectively, and the inner cavity of the barrel 1 is communicated with the liquid storage cavity 21 of the compressor 2, and the inner cavity of the barrel 1 and the liquid level in the liquid storage cavity 21 maintain the same height.
The liquid level detection mechanism comprises a guide rod 3, the guide rod 3 is fixed in an inner cavity of the barrel body 1 through a nut 4, an A floating ball switch 5 and a B floating ball switch 6 are arranged on the guide rod 3, the A floating ball switch 5 is used for detecting the ultra-high limit liquid level in a liquid storage cavity 21 of the compressor 2, the B floating ball switch 6 is used for detecting the ultra-low limit liquid level in the liquid storage cavity 21 of the compressor 2, a signal line 31 is arranged on the guide rod 3, and the signal line 31 is connected with the A floating ball switch 5 and the B floating ball switch 6.
The float switch A comprises a first float ball 51, a first upper limit ring 52, a first magnetic switch and a first lower limit ring 53, wherein the first upper limit ring 52 and the first lower limit ring 53 are respectively arranged on the guide rod 3, the first magnetic switch is arranged in the guide rod 3, the first magnetic switch is positioned in the middle between the first upper limit ring 52 and the first lower limit ring 53, the first float ball 51 is slidably sleeved on the guide rod 3, and the first float ball 51 is positioned between the first upper limit ring 52 and the first lower limit ring 53.
The B floating ball switch 6 comprises a second floating ball 61, a second magnetic switch, a second upper limit ring 63 and a second lower limit ring 62, the second upper limit ring 63 and the second lower limit ring 62 are respectively arranged on the guide rod 3, the second magnetic switch is arranged in the guide rod 3 and is positioned in the middle between the second upper limit ring 63 and the second lower limit ring 62, the second floating ball 61 is slidably sleeved on the guide rod 3, and the second floating ball 61 is positioned between the second upper limit ring 63 and the second lower limit ring 62.
In this embodiment, the float switch a 5 and the float switch B6 are sleeved on the guide rod 3, so that the liquid-break protection and the liquid-impact protection of the compressor 2 can be realized.
Example two: referring to fig. 2, the present embodiment is different from the first embodiment in that a float switch 5 is disposed on the guide bar 3.
In this embodiment, the liquid impact protection of the compressor 2 can be performed by sleeving the float switch a 5 on the guide rod 3.
The pipeline 11 is provided with a water discharge hole 7 for discharging liquid when the liquid reaches an ultrahigh limit liquid level, the water discharge hole 7 is provided with an electromagnetic valve, and the electromagnetic valve is controlled to be opened and closed by a signal sent by the A floating ball switch 5.
When the liquid level in the liquid storage cavity 21 reaches the ultra-high limit liquid level, the A float switch 5 detects that the liquid level in the liquid storage cavity 21 reaches the ultra-high limit alarm position, the A float switch 5 sends a signal to the main controller through the signal wire 31, the main controller controls the electromagnetic valve to be opened, the liquid in the liquid storage cavity 21 is discharged through the water discharge hole 7, and when the liquid level in the liquid storage cavity 21 is recovered to the normal liquid level, the electromagnetic valve is controlled to be closed.
A manual ball valve or a screw plug can be further arranged on the water discharge hole 7, and when the liquid level in the liquid storage cavity 21 reaches the ultra-high limit alarm position, the manual ball valve or the screw plug can be manually opened to discharge liquid.
Example three: referring to fig. 3, the present embodiment is different from the first embodiment in that a B float switch 6 is disposed on the guide bar 3.
In this embodiment, the liquid-break protection of the compressor 2 can be performed by sleeving the float switch 6B on the guide rod 3.
The working principle of liquid break protection is as follows: when the system supply system is normal, the liquid level is at the normal liquid level position shown in fig. 1, when the liquid supply system stops supplying liquid suddenly in the running process of the compressor 2, the normal liquid level is reduced, the second floating ball 61 slides along the guide rod 3, when the liquid level is reduced to the ultra-low limit alarm position, the magnet in the second floating ball 61 attracts the second magnetic switch to be closed to generate a signal, the signal is sent to a main controller (not shown) through a signal line 31, the compressor 2 is controlled to be executed to stop, and the compressor 2 is prevented from running under the liquid break state.
The liquid impact protection working principle is as follows: when the liquid supply system supplies liquid into the compressor 2 in the shutdown process of the compressor 2, a screw rotor of the compressor 2 stops rotating and cannot take the liquid out of the shell 23 in time, so that the liquid level in the liquid storage cavity 21 rises, the first floating ball 51 rises along with the liquid level along the guide rod 3 in the liquid level rising process, when the liquid level reaches the ultra-high limit alarm position, a magnet in the first floating ball 51 attracts the first magnetic switch to be closed to generate a signal, the signal is sent to the main controller through the signal wire 31 to control the locking of the compressor 2 to be prohibited to start, and the compressor 2 can be started only after the liquid level in the liquid storage cavity 21 to be processed falls, similarly, when the liquid level of the compressor 2 is higher than the ultra-high limit alarm position in the operation process, the magnet in the first floating ball 51 attracts the first magnetic switch to be closed to generate, and sends information to the main controller through the signal wire 31 to control the compressor 2 to stop operation; meanwhile, the main controller controls the electromagnetic valve to open so as to discharge the liquid in the liquid storage cavity 21 through the water discharge hole 7.
The float switch can use a light-sensitive liquid level sensor, a magnetic sensor and the like, and is equivalent to a device capable of measuring the liquid level in the shell, so that the protection of preventing the single-screw compressor from liquid breaking or liquid impact can be realized.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a single screw compressor with disconnected liquid and liquid hit protection device which characterized in that: including barrel, compressor, liquid level detection mechanism, the inside of the casing of compressor is provided with the stock solution chamber, the barrel sets up on the compressor, and with stock solution chamber intercommunication, liquid level detection mechanism sets up the inner chamber of barrel, liquid level detection mechanism is used for detecting super high limit liquid level and super low limit liquid level in the stock solution chamber to change into signal output, with control compressor stall or forbid the start.
2. The single screw compressor with liquid break and liquid impact protection as claimed in claim 1, wherein: the two ends of the barrel are connected with the side cover of the compressor through pipelines respectively, the inner cavity of the barrel is communicated with the liquid storage cavity of the compressor, and the inner cavity of the barrel and the liquid level in the liquid storage cavity keep the same height.
3. The single screw compressor with liquid break and liquid impact protection as claimed in claim 1, wherein: the both ends of barrel respectively through the pipeline with the upside and the downside of the casing of compressor are connected, just the inner chamber of barrel with the stock solution chamber intercommunication of compressor, the inner chamber of barrel with the liquid level in the stock solution intracavity keeps the same height.
4. The single screw compressor with liquid break and liquid impact protection as claimed in claim 2, wherein: the liquid level detection mechanism comprises a guide rod, the guide rod is fixed in the inner cavity of the barrel through a nut, an A floating ball switch and/or a B floating ball switch are/is arranged on the guide rod, the A floating ball switch is used for detecting the ultra-high limit liquid level in the liquid storage cavity of the compressor, the B floating ball switch is used for detecting the ultra-low limit liquid level in the liquid storage cavity of the compressor, a signal wire is arranged on the guide rod, and the signal wire is connected with the A floating ball switch and/or the B floating ball switch.
5. The single screw compressor with liquid break and liquid impact protection as claimed in claim 4, wherein: the A floating ball switch comprises a first floating ball, a first magnetic switch, a first upper limit ring and a first lower limit ring, the first upper limit ring and the first lower limit ring are respectively arranged on the guide rod, the first magnetic switch is arranged in the guide rod, the first magnetic switch is located in the middle between the first upper limit ring and the first lower limit ring, the first floating ball is slidably sleeved on the guide rod, and the first floating ball is located between the first upper limit ring and the first lower limit ring.
6. The single screw compressor with liquid break and liquid impact protection as claimed in claim 5, wherein: the float ball switch B comprises a second float ball, a second magnetic switch, a second upper limit ring and a second lower limit ring, the second upper limit ring and the second lower limit ring are respectively arranged on the guide rod, the second magnetic switch is arranged in the guide rod, the second magnetic switch is located in the middle between the second upper limit ring and the second lower limit ring, the second float ball is slidably sleeved on the guide rod, and the second float ball is located between the second upper limit ring and the second lower limit ring.
7. The single screw compressor with liquid break and liquid impact protection as claimed in claim 5, wherein: the pipeline is provided with a water drainage hole for draining liquid when the liquid level reaches an ultrahigh limit liquid level, the water drainage hole is provided with an electromagnetic valve, and the electromagnetic valve is controlled to be opened and closed by a signal sent by the float switch A.
8. The single screw compressor with liquid break and liquid impact protection as claimed in claim 7, wherein: the pipeline is provided with a water drainage hole for draining liquid when the liquid reaches an ultrahigh limit liquid level, and the water drainage hole is provided with a manual ball valve or a screw plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121531359.3U CN216111259U (en) | 2021-07-06 | 2021-07-06 | Single screw compressor with liquid break and liquid impact protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121531359.3U CN216111259U (en) | 2021-07-06 | 2021-07-06 | Single screw compressor with liquid break and liquid impact protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216111259U true CN216111259U (en) | 2022-03-22 |
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ID=80721706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121531359.3U Active CN216111259U (en) | 2021-07-06 | 2021-07-06 | Single screw compressor with liquid break and liquid impact protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216111259U (en) |
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2021
- 2021-07-06 CN CN202121531359.3U patent/CN216111259U/en active Active
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