CN209371609U - A kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit - Google Patents
A kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit Download PDFInfo
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- CN209371609U CN209371609U CN201821810427.8U CN201821810427U CN209371609U CN 209371609 U CN209371609 U CN 209371609U CN 201821810427 U CN201821810427 U CN 201821810427U CN 209371609 U CN209371609 U CN 209371609U
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Abstract
The utility model relates to a kind of industry cooling water circulation systems, more particularly to a kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit, including cooling tower, cooling water pump, cooling water pipeline, water return pipeline, heat exchanger and controller, the water outlet of the cooling water pump is connected to by mixed water vacuum tank with cooling water pipeline, air valve is installed at the top of the mixed water vacuum tank, skimmer circuit is connected between the mixed water vacuum tank and water return pipeline, overflow valve and check valve have been sequentially connected in the skimmer circuit, check valve guarantees that the water (flow) direction in pipeline flows to water return pipeline at the top of mixed water vacuum tank.The utility model increases mixed water vacuum tank, and increase skimmer circuit between water vacuum tank and water return pipeline mixed, it not only ensure that the stabilization of ductwork pressure, also cooling water pump operating condition can be made more stable, to guarantee that cooling water pump always works in high efficient district, and the antiscale component pipeline that prevents from leaking water is set and generates scale.
Description
Technical field
The utility model relates to a kind of industry cooling water circulation system more particularly to a kind of constant pressure water supplies in carry potential overflow circuit
Type industry cooling water circulation system.
Background technique
In industrial enterprise, cooling water recirculation system is a Xiang Changjian and critically important production corollary system, have be
The features such as complexity, Yong Huduo, big water of uniting.
For example, chemical company is horizontal heat exchanger using the equipment 90% of cooling water, corresponding recirculating cooling water system
Energy consumption is also very high, and water consumption accounts for about the 85%~92% of enterprise's total water consumption, and power load accounts for about enterprise's total electricity consumption
20%~30%.
In pharmacy corporation production, many techniques need to reduce temperature, to use the fluid that can remove material heat,
Usual cooling water is cooled down, such as the production of bulk pharmaceutical chemicals, needs to carry out cold place using compressed air of the cooling water to fermentation
Reason, while the heat that bulk pharmaceutical chemicals fermentation generates is taken away using cooling water.
In metallurgy industry, technique cold water designs sintering, coking, ironmaking, steel-making, Rolling production whole process, and energy consumption is huge, with
For mini-medium mill, only cooling water pump year power consumption is just up to 300,000,000 kWh or more.
The Chinese utility model patent of Publication No. CN204006906U discloses a kind of enclosed cooling recirculation system, tool
Body is related to a kind of energy saving scale protective type chemical process enclosed cooling recirculation system, can be according to unit load dynamic regulation to be cooled system
The operating status of system reduces energy consumption, and the antiscale component pipeline that prevents from leaking water is arranged and generates scale.But the circulation there are still
The space of energy saving optimizing is carried out, for example influences cooling water since the variation of thermic load causes ductwork pressure to change when more pump operations
The working condition of pump, it is difficult to guarantee that cooling water pump always works in high efficient district.
Utility model content
Deficiency in solve above-mentioned technical problem, the purpose of this utility model is that: a kind of carry potential overflow circuit is provided
Constant pressure water supply type industry cooling water circulation system increases mixed water vacuum tank, and mixed water vacuum tank increases skimmer circuit, not only
It ensure that the stabilization of ductwork pressure, also cooling water pump operating condition can be made more stable, to guarantee that cooling water pump always works in efficiently
Area reduces energy consumption, and the antiscale component pipeline that prevents from leaking water is arranged and generates scale.
The technical scheme adopted by the utility model for solving the technical problem is:
A kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit, including cooling tower, cooling water pump, cooling
The water outlet of waterpipe, water return pipeline, heat exchanger and controller, the cooling water pump passes through mixed water vacuum tank and cooling water
Pipeline is connected to, and is equipped with air valve at the top of the mixed water vacuum tank, is connected between the mixed water vacuum tank and water return pipeline
It is connected to skimmer circuit, overflow valve and check valve have been sequentially connected in the skimmer circuit, check valve guarantees the water flow in pipeline
Direction flows to water return pipeline at the top of mixed water vacuum tank.
Further, the cooling water pump is equipped with pump variable frequency device, and cooling tower is equipped with blower and heat exchange coil, corresponding wind
Fan frequency converter is arranged in machine, is arranged electric-powered shutter above cooling tower tower body, and heat exchange coil inner wall uses helicitic texture, between screw thread
Away from for 4~5.5mm, the depth of thread is 0.3~0.45mm, and heat exchange coil water outlet is communicated by water supply line I with cooling pond,
Cooling pond is communicated by water supply line II with cooling water pump entrance, and cooling water pump water outlet, expansion valve, changes mixed water vacuum tank
Hot device water inlet sequentially passes through cooling water pipeline and communicates, and heat exchanger water outlet passes through water return pipeline and heat exchange coil water inlet phase
It is logical, cooling water filtering device is set on cooling water pipeline, and pump capacity meter, heat exchange coil, water supply is arranged in cooling water pump water outlet
Pipeline I, water supply line II, cooling water pipeline and water return pipeline embed permanent magnetism piece respectively, and coolant water temperature is arranged on cooling water pipeline
Sensor and cooling water pressure force snesor are spent, return water temperature sensor and pressure of return water sensor are set on water return pipeline, it is extraneous
Air temperature sensor is fixed in the air outside cooling tower, pump capacity meter, cooling-water temperature sensor, cooling water pressure
Sensor, return water temperature sensor, pressure of return water sensor and ambient air temperature sensor are connected with controller input terminal, wind
Machine frequency converter and pump variable frequency device are connected with controller output end.
Further, the cooling tower is equipped with 3, and water supply line I passes through changing for water supply branch and each cooling tower respectively
Hot coil water outlet communicates.
Further, the cooling water pump is equipped with 1-6.
Further, the cooling water pump is equipped with 3-6, wherein the power of 1 cooling water pump is other cooling water pump works
The 50%-75% of rate value.
Further, cooling water pipeline is divided into two sections by the cooling water filtering device, cooling water filtering device difference
Connected by flange with two sections of cooling water pipelines, cooling water filtering device includes chimney filter and filter core, and filter core is arranged inside chimney filter.
Further, the filter core is made of polypropylene, is set as cylindrical, through-hole is equipped between two bottom surfaces.
Further, the ambient air temperature sensor is fixed on inside plastic net cover.
Compared with prior art, the utility model has the following beneficial effects:
(1) permanent magnetism piece is set in each pipeline, using permanent magnetism piece magnetic softening water quality, prevents each inner wall of the pipe from generating water
Dirt；
(2) sped structure is set by cooling tower heat exchange coil inner wall, the performance expanded with heat and contract with cold using copper pipe is further
Prevent heat exchange coil inner wall scale from covering；
(3) shutter is set above cooling tower, increases the rate of heat exchange inside cooling tower between external air, drop
Low fan energy consumption；
(4) cooling water filtering device, good seal, convenient disassembly, convenient for fixed are arranged by flange on cooling water pipeline
Phase cleaning；
(5) blower fan of cooling tower frequency converter and cooling water pump frequency converter are adjusted by controller in real time, is especially adopted
It is pumped with a small-power, is more easier so that adjusting, save the power consumption of cooling water pump and blower fan of cooling tower；
(6) outside air temperature value is acquired, adjusts cooling tower heat exchange coil water outlet water flow temperature, control according to the temperature value
Precision processed is high, improves process operation reliability and stability.
(7) increase mixed water vacuum tank, and mixed water vacuum tank increases skimmer circuit, not only ensure that the steady of ductwork pressure
It is fixed, process operation reliability and stability are improved, also cooling water pump operating condition can be made more stable, to guarantee cooling water pump work always
Make to reduce energy consumption in high efficient district.
Detailed description of the invention
The structural schematic diagram of Fig. 1 the utility model.
In figure: 1, fan frequency converter；2, blower；3, heat exchange coil；4, water return pipeline；5, water supply line I；6, power-operated shutter
Window；7, pressure of return water sensor；8, return water temperature sensor；9, controller；10, heat exchanger；11, expansion valve；12, cooling water mistake
Filter device；13, cooling water pipeline；14, cooling-water temperature sensor；15, cooling water pressure force snesor；16, pump variable frequency device；
17, cooling water pump；18, pump capacity meter；19, water supply line II；20, cooling pond；21, ambient temperature sensor；22, it sprays
Pipeline；23, cooling tower；24, water vacuum tank is mixed；25, air valve；26, overflow valve；27, skimmer circuit；28, check valve.
Specific embodiment
With reference to embodiments and the technical solution of the utility model is described in detail in respective drawings, so that this field
Technical staff can be more clearly understood the embodiment of the utility model, but and be not so limited the protection model of the utility model
It encloses.
As shown in Figure 1, a kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit, including cooling tower 23,
Cooling water pump 17, mixed water vacuum tank 24, expansion valve 11, heat exchanger 10, controller 9, frequency converter, temperature sensor, pressure sensing
The water outlet of device and pump capacity meter 18, the cooling water pump 17 is connected to by mixed water vacuum tank 24 with cooling water pipeline 13,
The top of the mixed water vacuum tank 24 is equipped with air valve 25, connects between the mixed water vacuum tank 24 and water return pipeline 4
There is skimmer circuit 27, overflow valve 26 and check valve 28 have been sequentially connected in the skimmer circuit 27, check valve 28 guarantees pipeline
In water (flow) direction flow to water return pipeline 4 from the top of mixed water vacuum tank 24.Cooling water pump 17 is equipped with pump variable frequency device 16, cooling
Tower 23 is equipped with blower 2 and heat exchange coil 3, and fan frequency converter 1, setting electronic hundred above 23 tower body of cooling tower is arranged in corresponding blower 2
Leaf window 6,3 inner wall of heat exchange coil use helicitic texture, flight pitch 4-5.5mm, depth of thread 0.3-0.45mm, heat exchange plate
3 water outlet of pipe is communicated by water supply line I5 with cooling pond 20, and cooling pond 20 passes through water supply line II19 and cooling water pump
17 entrances communicate, and 17 water outlet of cooling water pump, mixed water vacuum tank 24, expansion valve 11,10 water inlet of heat exchanger sequentially pass through cooling
Waterpipe 13 communicates, and 10 water outlet of heat exchanger is communicated by water return pipeline 4 with 3 water inlet of heat exchange coil, on cooling water pipeline 13
Cooling water filtering device 12 is set, and pump capacity meter is arranged in 17 water outlet of cooling water pump, and heat exchange coil 3, supplies water at water supply line I5
Pipeline II19, cooling water pipeline 13 and water return pipeline 4 embed permanent magnetism piece respectively, and setting cooling water temperature passes on cooling water pipeline 13
Sensor 14 and cooling water pressure force snesor 15 return water temperature sensor 8 and pressure of return water sensor 7 are arranged on water return pipeline 4, outside
Boundary's air temperature sensor 21 is fixed in the air outside cooling tower 23, pump capacity meter 18, cooling-water temperature sensor 14,
Cooling water pressure force snesor 15, return water temperature sensor 8, pressure of return water sensor 7 and ambient air temperature sensor 21 and control
9 input terminal of device processed is connected, and fan frequency converter 1 and pump variable frequency device 16 are connected with 9 output end of controller.
Wherein, cooling tower 23 is equipped with 3, and water supply line I5 passes through water supply branch and each cooling tower heat exchange coil 3 respectively
Communicate, 23 bottom of cooling tower is equipped with sink, and feeding spraying pump water inlet communicates with sink, feeding spraying pump water outlet pass through pipeline with it is cold
But 23 top spray pipeline 22 of tower communicates, on the one hand the high-temperature water in heat exchange coil 3 passes through the shower water cooling of spray piping 22,
On the other hand heat in cooling tower 23 is drained into outside air by blower 2, the cooling water pump 17 is equipped with 1-6, control
Device 9, according to 17 flow of cooling water pipeline 13 and 4 temperature difference of water return pipeline and cooling water pump, adjusts cooling in Dynamic Regulating Process
Water pump 17 needs the number of units opened, and saves the energy consumption that cooling water pump 17 is run；The cooling water filtering device is by cooling water pipeline
13 are divided into two sections, and cooling water filtering device 12 is connected by flange with two sections of cooling water pipelines 13 respectively, cooling water filtering dress
Setting 12 includes chimney filter and filter core, and filter core is arranged inside chimney filter, and filter core is made of polypropylene, is set as cylindrical, two bottom surfaces it
Between be equipped with through-hole, setting through-hole can make cooling water flow fast through cooling water filtering device on filter core, chimney filter by flange with it is cold
But waterpipe is connected, and one side sealing effect is good, and leakage will not occur in cooling water cycle process, on the other hand, easy to disassemble,
Filter core can be replaced with periodic cleaning；Ambient air temperature sensor is fixed on inside plastic net cover, on the one hand plastic net cover allows
Ambient air temperature sensor measures the temperature of external air, on the other hand plays protection to ambient air temperature sensor and makees
With prolonging its service life.
The working principle of the utility model are as follows:
Cooling water passes through 23 heat exchange coil of cooling tower, 3 water outlet first and enters water supply line I5, then passes through water supply line
I5 enters cooling pond 20, and 17 water inlet of cooling water pump extracts the cooling water in cooling pond 20, water by water supply line II19
Pump discharge meter 18 measures the flow of 17 water outlet of cooling water pump, and at the same time, cooling-water temperature sensor 14 measures cooling water pipe
13 water flow temperature of road, cooling water pressure force snesor 15 measure 13 pressure of supply water of cooling water pipe, and cooling water is by mixing water vacuum tank 24
Enter expansion valve 11 with cooling water pipeline 13, expansion valve 11 keeps the cooling water in cooling water pipeline low as low temperature by its throttling
The moist steam of pressure, then moist steam absorbs heat in heat exchanger 10, strengthens refrigeration effect, to prevent from generating after cooling water is heated
Scale is covered in each inner wall of the pipe, and cooling water filtering device 12, mistake are arranged between 17 water outlet of expansion valve 11 and cooling water pump
Filter the impurity in cooling water.In addition, in water supply line I, water supply line II, cooling water pipeline 13, water return pipeline 4 and heat exchange plate
Permanent magnetism piece is embedded in pipe 3, and water is softened using the magnetism of permanent magnetism piece, prevents inner wall of the pipe from having scale to cover；In view of heat exchange plate
The fabulous heating conduction of pipe 3 passes through heat exchanger 10 because of the effect expanded with heat and contract with cold in 3 inner wall of heat exchange coil setting helicitic texture
High-temperature water into heat exchange coil 3 can make 3 rapid expanding of heat exchange coil, in the effect of 23 blower 2 and spray piping 22 of cooling tower
Under, heat exchange coil 3 and fast cooling are shunk, and helicitic texture can be broken having a little scale on pipeline when shrinking
It splits and falls, and temporarily collected by cooling water filtering device, then periodic cleaning, similarly, 10 heat exchange pipeline inner wall of heat exchanger
It can be set to sped structure, thus thoroughly prevent the generation of scale in each pipeline.
For the dynamic regulation for realizing system, frequency converter is arranged to cooling water pump 17 and 23 blower 2 of cooling tower respectively, passes through change
Frequency device realizes the adjusting of cooling water pump water flow and blower fan of cooling tower revolving speed, and the electric-powered shutter being arranged above cooling tower can increase
Add the exchange velocity inside cooling tower with external air, the cooling tower relative to not electric-powered shutter can be substantially reduced blower
Energy consumption, in use, cooling-water temperature sensor 14 measures 13 water flow temperature of cooling water pipeline, cooling water pressure force snesor 15 is measured
13 pressure of supply water of cooling water pipeline, return water temperature sensor 8 measure 4 water flow temperature of water return pipeline, and pressure of return water sensor 7 measures
8 pressure of return water of water return pipeline, ambient air temperature sensor 21 measure 23 ambient air temperature of cooling tower, and pump capacity meter 18 is logical
Supercooling water pump 17 runs electric signal and 17 proper property curve of cooling water pump, output 17 real-time traffic of cooling water pump and in real time effect
Rate, above-mentioned data are transmitted separately to controller 9, the preferred PLC of controller 9, according to cooling water and return water temperature difference and water pump stream
Amount calculates 10 heat exchange amount of heat exchanger, adjusts 16 frequency of pump variable frequency device, and then change 17 flow of cooling water pump.In adjustment process
In, due to being connected with skimmer circuit 27 between mixed water vacuum tank 24 and water return pipeline 4, it is sequentially connected in the skimmer circuit 27
There are overflow valve 26 and check valve 28, check valve 28 guarantees that the water (flow) direction in pipeline flows to return water from the top of mixed water vacuum tank 24
Pipeline 4, overflow valve 26 ensure that pressure is constant in mixed water vacuum tank 24, to ensure that the pressure of pipe network is stablized, keep cooling
17 Real time Efficiency of water pump is in peak, while the cooling water by skimmer circuit 27 and the high-temperature water by heat exchanger 10 are leading
Mixing cools down, while the cooling water pressure in cooling water pipeline 13 being maintained to stablize, and guarantees heat exchanger efficient operation state, drop
The energy consumption of low cooling water pump 17 consumes, in addition, mixed water pressure stabilizing is arranged between 17 water outlet of cooling water pump and heat exchanger water inlet 10
Tank 24, expansion valve 11, mixed water vacuum tank 24 has not only carried out mixed water and cooling to cooling water again, but also ductwork pressure is more
Add stabilization, improves process operation reliability and stability, also the pressure of cooling water pump water outlet can be made more stable, it is cold to guarantee
But water pump always works in high efficient district, reduces energy consumption, expansion valve 11 make in cooling water pipeline 13 cooling water by its throttle at
For the moist steam of low-temp low-pressure, then moist steam absorbs heat in heat exchanger 10, strengthens refrigeration effect.In addition, mixed water pressure stabilizing
The air valve 25 installed at the top of tank 24 is used to exclude the gas in mixed water vacuum tank 24, ensure that and stops in pipeline operating
There is the phenomenon that negative pressure can cause pipe vibration or rupture in time in electricity, termination of pumping pipeline.
In system operation, when the cooling water pump 17 is equipped with 3-6, wherein the power of 1 cooling water pump is other
The 50%-75% of cooling water pump performance number is pumped especially with a small-power, is more easier so that adjusting, and guarantees cooling water pump
High efficient district is always worked in, the power consumption of cooling water pump is saved.
In system operation, ambient air temperature sensor 21 detects outside air temperature, and controller 9 is according to extraneous empty
Temperature degree, adjusts the supply water temperature on water supply line I5, i.e. 3 water outlet water temperature of heat exchange coil, this temperature value can pass through adjusting
23 fan frequency converter 1 of cooling tower is realized.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to institute
The embodiment of description.For the ordinary skill in the art, the case where not departing from the principle and spirit of the invention
Under to these embodiments carry out it is a variety of variation, modification, replacement and deformation still fall within it is within the protection scope of the present utility model.
Claims (8)
1. a kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit, including cooling tower (23), cooling water pump
(17), cooling water pipeline (13), water return pipeline (4), heat exchanger (10) and controller (9), which is characterized in that the cooling
The water outlet of water pump (17) is connected to by mixed water vacuum tank (24) with cooling water pipeline (13), the mixed water vacuum tank (24)
Top is equipped with air valve (25), is connected with skimmer circuit (27) between the mixed water vacuum tank (24) and water return pipeline (4),
Overflow valve (26) and check valve (28) are sequentially connected in the skimmer circuit (27), check valve (28) guarantees the water in pipeline
Stream direction flows to water return pipeline (4) at the top of mixed water vacuum tank (24).
2. a kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit according to claim 1, feature
It is, the cooling water pump (17) is equipped with pump variable frequency device (16), and cooling tower (23) is equipped with blower (2) and heat exchange coil (3),
Electric-powered shutter (6) are arranged in corresponding blower (2) setting fan frequency converter (1), cooling tower (23) tower body top, heat exchange coil (3)
Inner wall uses helicitic texture, and flight pitch is 4~5.5mm, and the depth of thread is 0.3~0.45mm, and heat exchange coil (3) water outlet is logical
It crosses water supply line I (5) to communicate with cooling pond (20), cooling pond (20) pass through water supply line II (19) and cooling water pump (17)
Entrance communicates, and cooling water pump (17) water outlet, mixed water vacuum tank (24), expansion valve (11), heat exchanger (10) water inlet sequentially lead to
Supercooled water pipeline (13) communicates, and heat exchanger (10) water outlet is communicated by water return pipeline (4) with heat exchange coil (3) water inlet,
It is arranged on cooling water pipeline (13) cooling water filtering device (12), pump capacity meter (18) are arranged in cooling water pump (17) water outlet,
Heat exchange coil (3), water supply line I (5), water supply line II (19), cooling water pipeline (13) and water return pipeline (4) embed forever respectively
Cooling-water temperature sensor (14) and cooling water pressure force snesor (15), water return pipeline are arranged on cooling water pipeline (13) for magnetic sheet
(4) return water temperature sensor (8) are set on and pressure of return water sensor (7), ambient air temperature sensor (21) are fixed on cold
But in the external air of tower (23), pump capacity meter (18), cooling-water temperature sensor (14), cooling water pressure force snesor
(15), return water temperature sensor (8), pressure of return water sensor (7) and ambient air temperature sensor (21) and controller (9) are defeated
Enter end to be connected, fan frequency converter (1) and pump variable frequency device (16) are connected with controller (9) output end.
3. a kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit according to claim 2, feature
It is, the cooling tower (23) is equipped with 3, and water supply line I (5) passes through the heat exchange of water supply branch and each cooling tower (23) respectively
Coil pipe (3) water outlet communicates.
4. a kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit according to claim 3, feature
It is, the cooling water pump (17) is equipped with 1-6.
5. a kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit according to claim 3, feature
It is, the cooling water pump (17) is equipped with 3-6, wherein the power of 1 cooling water pump is other cooling water pump performance numbers
50%-75%。
6. a kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit according to claim 4 or 5, special
Sign is that cooling water pipeline (13) is divided into two sections by the cooling water filtering device (12), cooling water filtering device (12) point
Not Tong Guo flange connect with two sections of cooling water pipelines (13), cooling water filtering device (12) include chimney filter and filter core, filter core setting
Inside chimney filter.
7. a kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit according to claim 6, feature
It is, the filter core is made of polypropylene, is set as cylindrical, through-hole is equipped between two bottom surfaces.
8. a kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit according to claim 7, feature
It is, the ambient air temperature sensor (21) is fixed on inside plastic net cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821810427.8U CN209371609U (en) | 2018-11-05 | 2018-11-05 | A kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821810427.8U CN209371609U (en) | 2018-11-05 | 2018-11-05 | A kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit |
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| Publication Number | Publication Date |
|---|---|
| CN209371609U true CN209371609U (en) | 2019-09-10 |
Family
ID=67836059
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821810427.8U Active CN209371609U (en) | 2018-11-05 | 2018-11-05 | A kind of constant pressure water supply type industry cooling water circulation system in carry potential overflow circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893863A (en) * | 2022-06-02 | 2022-08-12 | 南通市肿瘤医院 | Air conditioner water leakage alarm system for machine room |
-
2018
- 2018-11-05 CN CN201821810427.8U patent/CN209371609U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893863A (en) * | 2022-06-02 | 2022-08-12 | 南通市肿瘤医院 | Air conditioner water leakage alarm system for machine room |
| CN114893863B (en) * | 2022-06-02 | 2023-11-24 | 南通市肿瘤医院 | Air conditioner water leakage alarm system for machine room |
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