CN208998278U - A kind of air conditioner water circulating system leakage monitoring system - Google Patents
A kind of air conditioner water circulating system leakage monitoring system Download PDFInfo
- Publication number
- CN208998278U CN208998278U CN201821813773.1U CN201821813773U CN208998278U CN 208998278 U CN208998278 U CN 208998278U CN 201821813773 U CN201821813773 U CN 201821813773U CN 208998278 U CN208998278 U CN 208998278U
- Authority
- CN
- China
- Prior art keywords
- floor
- pressure sensor
- water
- return
- switching valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to a kind of air conditioner water circulating system leakage monitoring systems, leakage monitoring system include the pressure sensor P1 being arranged on each floor return water main pipe and electric switching valve K1, be arranged in each floor on water conduit tube electric switching valve K2, the electric cabinet of each floor is set, pressure sensor P1, electric switching valve K1 and the electric switching valve K2 of each floor are connected with the electric cabinet of corresponding floor respectively, and the electric cabinet of each floor is connect with the monitoring host computer that Central Control Room is arranged in.It has the advantages that it is of simple structure and low cost, be quick on the draw, be safe and reliable, is practical.
Description
Technical field
The utility model relates to a kind of air-conditioning systems, and in particular to a kind of leakage monitoring system of air conditioner water circulating system.
Background technique
Air conditioner water circulating system carries the effect for conveying cold (heat) water, to realize refrigeration (heating) mesh in air conditioning terminal
's.For the air conditioner water circulating system of two pipes system, because being applied to cooling in summer and winter heating simultaneously, it is easy to because expanding with heat and contract with cold
It causes pipe joint to loosen and generates drainage, will affect the normal operation of air-conditioner set, and meeting once generating a large amount of leaks
Cause biggish property loss.For the leak detection of air conditioner water circulating system, this field mainly uses manual inspection at present
Mode, there are problems for this mode, are mainly manifested in following aspect: working efficiency is low, finds often to have made when leak
At certain property loss；Pipeline (such as piping shaft, furred ceiling interior conduit) leak of concealed location should not be found, be easy
Generate detection leakage phenomenon；It was found that needing manually to close corresponding valve after leak, reaction speed is slow, cannot achieve fast leak-stopping mesh
's.
Utility model content
The purpose of the utility model is to provide a kind of air conditioner water circulating system leakage monitoring system, simple with structure,
It is low in cost, be quick on the draw, be safe and reliable, practical advantage.
To solve the above-mentioned problems in the prior art, the utility model provides a kind of air conditioner water circulating system leakage
Monitoring system, the air conditioner water circulating system include the water main and return main connecting with air-conditioner set, each floor difference
Equipped with it is corresponding connect with water main and return main for water conduit tube and return water main pipe, the air conditioning terminal of each floor passes through respectively
Corresponding the connecting for water conduit tube and return water main pipe with the floor of water supply branch pipe and return branch, the leakage monitoring system is including setting
It sets pressure sensor P1 and electric switching valve K1 on each floor return water main pipe, each floor is set for electronic on water conduit tube
Switch valve K2, the electric cabinet that each floor is set, pressure sensor P1, electric switching valve K1 and the electric switching valve K2 of each floor
It is connected respectively with the electric cabinet of corresponding floor, the electric cabinet of each floor is connect with the monitoring host computer that Central Control Room is arranged in；It is described
Pressure sensor P1 is between return branch and return main, and the electric switching valve K1 is in pressure sensor P1 and return water
Between general pipeline, the electric switching valve K2 is between water supply branch pipe and water main；The electric cabinet is controlled equipped with PLC/DDC
Device.
Further, a kind of air conditioner water circulating system leakage monitoring system of the utility model further includes being arranged in each floor
Pressure sensor P2 in return branch, and the pressure sensor P3 being arranged on each floor water supply branch pipe, the pressure of each floor
Force snesor P2 and pressure sensor P3 is connected with the electric cabinet of corresponding floor respectively.
Further, a kind of air conditioner water circulating system leakage monitoring system of the utility model further includes being arranged in each floor
For the pressure sensor P4 on water conduit tube, and it is in pressure sensor P4 between water supply branch pipe and electric switching valve K2, each building
The pressure sensor P4 of layer is connected with the electric cabinet of corresponding floor.
Further, a kind of air conditioner water circulating system leakage monitoring system of the utility model further includes that setting is total in return water
The pressure sensor P5 in tube top portion, pressure sensor P5 are connect with monitoring host computer.
Further, a kind of air conditioner water circulating system leakage monitoring system of the utility model, wherein the electric cabinet is equipped with
The Analog input mModule and digital quantity output module being connect respectively with PLC/DDC controller.
A kind of air conditioner water circulating system leakage monitoring system of the utility model compared with prior art, has the advantage that
Air conditioner water circulating system includes the water main and return main connecting with air-conditioner set, and each floor is respectively equipped with corresponding and supplies water
General pipeline connected with return main for water conduit tube and return water main pipe, the air conditioning terminal of each floor passes through water supply branch pipe and return water respectively
Branch pipe correspondence is connect with the floor for water conduit tube and return water main pipe.The utility model passes through in each floor of air conditioner water circulating system
Pressure sensor P1 and electric switching valve K1 is set on return water main pipe, in each floor for electric switching valve K2 is arranged on water conduit tube,
In each storey setting electric cabinet, and make the pressure sensor P1, electric switching valve K1 and electric switching valve K2 of each floor respectively with
The electric cabinet connection of corresponding floor, connect the electric cabinet of each floor with the monitoring host computer that Central Control Room is arranged in；Wherein, pressure
Sensor P1 is between return branch and return main, electric switching valve K1 be in pressure sensor P1 and return main it
Between, electric switching valve K2 is between water supply branch pipe and water main, wherein the electric cabinet is equipped with PLC/DDC controller.By
This just constitute it is a kind of it is of simple structure and low cost, be quick on the draw, be safe and reliable, practical air conditioner water circulating system
Leakage monitoring system.In practical applications, occurred first with leakage point in building according to system pressure and preset water leakage threshold value
It is condition in layer range, the pressure value of the position calculation pressure sensor P1 leaks reference point as it；Then the pressure of each floor is allowed
The pressure of force snesor P1 real-time detection corresponding position, and will test the electric cabinet that signal sends corresponding floor to；Then it allows each
The electric cabinet of floor by the pressure detection value of pressure sensor P1 compared with it leaks reference point, when a certain floor pressure sensor
When the pressure detection value of P1 is less than or equal to it and leaks reference point, then it can determine whether the floor leak, allow the automatically controlled of the floor at this time
Case, which sends instruction to corresponding electric switching valve K1 and electric switching valve K2, makes its closing, that is, can be cut off the floor for water conduit tube and
The connection of return water main pipe and water main and return main makes water leakage control in the range of the floor, and by monitoring
Host send leaking area information shown, make staff can quickly, judge leaking area in time, compared to existing people
Work routine inspection mode not only increases working efficiency and reaction speed, and can realize automatic control purpose when leak occurs, can be effective
Avoid the expansion of water leakage continued to increase with property loss.
Shown specific embodiment is to a kind of air conditioner water circulating system leak supervision of the utility model system with reference to the accompanying drawing
System is described in further detail:
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of air conditioner water circulating system leakage monitoring system of the utility model.
Specific embodiment
Firstly the need of explanation, the nouns of locality such as upper and lower, front, rear, left and right described in the utility model are only according to attached
Scheme carry out description, in order to understand, not to the technical solution of the utility model and be claimed range progress limitation.
A kind of specific embodiment of air conditioner water circulating system leakage monitoring system of the utility model as shown in Figure 1, air-conditioning
Water circulation system includes the water main 1 and return main 1 ' connecting with air-conditioner set, and water main 1 and return main 1 ' are arranged
In pipe well, each floor is connect for water conduit tube 2 and return water main pipe 2 ' are corresponding with water main 1 and return main 1 ', each floor
Air conditioning terminal pass through respectively water supply branch pipe 3 and return branch 3 ' it is corresponding with the floor for water conduit tube 2 and return water main pipe 2 ' even
It connects.Leakage monitoring system includes the pressure sensor P1 being arranged on each floor return water main pipe 2 ' and electric switching valve K1, setting
Each floor on water conduit tube 2 electric switching valve K2, the electric cabinet 4 of each floor is set, allow the pressure sensor of each floor
P1, electric switching valve K1 and electric switching valve K2 are connected with the electric cabinet 4 of corresponding floor respectively, and make the electric cabinet 4 of each floor
It is connect with the monitoring host computer 5 that Central Control Room is arranged in.Wherein, electric cabinet 4 is equipped with PLC/DDC controller, and pressure sensor P1 is set
Set on the return water main pipe 2 ' between return branch 3 ' and return main 1 ', electric switching valve K1 setting in pressure sensor P1 and
On return water main pipe 2 ' between return main 1 ', the water supply between water supply branch pipe 3 and water main 1 is arranged in electric switching valve K2
On main pipe 2.
Just constitute through the above arrangement it is a kind of it is of simple structure and low cost, be quick on the draw, be safe and reliable, is practical
Air conditioner water circulating system leakage monitoring system.In practical applications, first according to system pressure and preset water leakage threshold
Value is occurred in range of floors with leakage point as condition, and the pressure value of the position calculation pressure sensor P1 leaks reference as it
Value；Then allow each floor pressure sensor P1 real-time detection corresponding position pressure, and will test signal and send corresponding building to
The electric cabinet 4 of layer；Then allow the electric cabinet 4 of each floor that the pressure detection value of pressure sensor P1 is leaked reference point ratio with it
Compared with, when the pressure detection value of a certain floor pressure sensor P1 be less than or equal to its leak reference point when, then can determine whether the floor
Leak, allowing the electric cabinet 4 of the floor to send instruction to corresponding electric switching valve K1 and electric switching valve K2 at this time makes its closing,
The floor can be cut off for the connection of water conduit tube and return water main pipe and water main and return main, make water leakage control in the building
It in the range of layer, and is shown by sending leaking area information to monitoring host computer 5, sentence staff can quickly, in time
Disconnected leaking area not only increases working efficiency and reaction speed compared to existing manual inspection mode, and is leaking
Automatic control purpose is realized when water, can effectively avoid the expansion of water leakage continued to increase with property loss.The utility model passes through
On the return water main pipe 2 ' that pressure sensor P1 is arranged between return branch 3 ' and return main 1 ', make any place in floor
Leak can fast reaction on pressure sensor P1, improve the reliability and safety of leakage monitoring system.
As prioritization scheme, present embodiment is provided with pressure sensor P2 also in each floor return branch 3 ',
Pressure sensor P3 on each floor water supply branch pipe 3, and distinguish the pressure sensor P2 and pressure sensor P3 of each floor
It is connected with the electric cabinet 4 of corresponding floor.The utility model by adding pressure sensor P2 and pressure sensor P3 in each floor,
Make that the leakage point on return branch 3 ' and water supply branch pipe 3 occurs, can fast reaction in corresponding pressure sensor P2 and pressure
Sensor P3, and so that corresponding electric cabinet 4 is sent instruction and close electric switching valve K1 and electric switching valve K2, it effectively increases and lets out
Leak the reaction speed and sensitivity of monitoring system.Meanwhile present embodiment is also in each floor for being provided with pressure on water conduit tube 2
Force snesor P4, and it is in pressure sensor P4 between water supply branch pipe 3 and electric switching valve K2, and pass the pressure of each floor
Sensor P4 is connected with the electric cabinet 4 of corresponding floor.This setting occurs when leakage point when each floor is for 2 front end of water conduit tube, can
Fast reaction makes corresponding electric cabinet 4 send instruction and closes electric switching valve K1 and electric switching valve in pressure sensor P4
K2 further improves the sensitivity of leakage monitoring system.In addition, present embodiment is also in 1 ' top setting of return main
Pressure sensor P5, and it connect pressure sensor P5 with monitoring host computer 5.In practical applications, according to system pressure, default
Water leakage threshold value and leak react duration, the farthest check bit of tripping force snesor P5 is appeared in leakage point and is set to condition,
The pressure feedback value of the position calculation pressure sensor P5 leaks reference point as it, as generation leak but pressure sensor P1, pressure
When force snesor P2, pressure sensor P3 and pressure sensor P4 do not react, the pressure detection value of pressure sensor P5 can be because
It reacts to leak reference point less than or equal to it, and send instruction to the electric cabinet 4 of each floor by monitoring host computer 5 to make it
Corresponding electric switching valve K1 and electric switching valve K2 is closed, cuts off the purpose that each floor supplies water to realize；Then each building is allowed
Layer electric cabinet 4, which compares, closes electric switching valve K1 and electric switching valve K2 front and back pressure sensor P1, pressure sensor P2, pressure
The detected value variable quantity of sensor P3 and pressure sensor P4, variable quantity can determine whether corresponding floor leakage more than pressure difference preset value
Water, what variable quantity was not above pressure difference preset value can determine whether that corresponding floor is water-tight, effectively increase the comprehensive of leak detection
The safety of property and system.
It should be noted that in practical applications the electric cabinet 4 in the utility model be equipped with respectively with PLC/DDC controller
The Analog input mModule and digital quantity output module of connection；Air conditioning terminal and water supply branch pipe 3 and return branch in each floor
3 ' can be arranged multiple groups according to specific room quantity；It can also be divided into multiple regions according to construction scope, and keep each region equal
Air conditioner water circulating system leakage monitoring system is arranged in a manner described.Above-mentioned water leakage threshold value should be according to air conditioner water circulating system
System pressure and reaction time of each pressure sensor be rationally arranged, the pressure sensor P1 of each floor, pressure are passed
Sensor P2, pressure sensor P3 and pressure sensor P4, it is fast to the reaction speed of leak because closer apart from leakage point, when reaction
Between can not consider, usually identical smaller value is set by its water leakage threshold value, for pressure sensor P5, when leakage point is sent out
Life is longer to the reaction time of leak when apart from farther away each floor, usually sets the larger value for its water leakage threshold value,
If system pressure is the air conditioner water circulating system of 0.6Mpa, if the corresponding water leakage threshold value of pressure sensor P5 is set as 10L, when
When water leakage reaches 10L, the pressure of the position pressure sensor P5 can be down to 0.07Mpa in 30 seconds hereinafter, can incite somebody to action at this time
Leakage reference point of the 0.07Mpa as pressure sensor P5.Above-mentioned pressure difference preset value is according to electric switching valve K1 and electronic
What variable quantity and pace of change before and after switch valve K2 were rationally arranged, according to experiment, watertight floor closes electric switching valve
Before and after K1 and electric switching valve K2, the inspection of pressure sensor P1, pressure sensor P2, pressure sensor P3 and pressure sensor P4
Measured value will not generate variation, and after the floor of leak closes electric switching valve K1 and electric switching valve K2, pressure sensor P1, pressure
The detected value of force snesor P2, pressure sensor P3 or pressure sensor P4 can decline rapidly, for the reaction speed for improving system
And safety, pressure difference preset value is usually set as 0.01MPa.
To help technical staff to understand the utility model, a kind of air conditioner water circulating system of the utility model is leaked supervise below
The operational process of control system makees schematic illustration.
One, according to system pressure and preset first water leakage threshold value, with leakage point respectively appear in pressure sensor P1,
Pressure sensor P2, pressure sensor P3 and the corresponding region pressure sensor P4 are boundary condition, calculate separately each floor pressure
Force snesor P1, pressure sensor P2, pressure sensor P3 and pressure sensor P4 corresponding position critical pressure value as it
Leak reference point.System pressure refers to the pressure of supply water of air-conditioner set.
First water leakage threshold value is arranged according to the quantity of system pressure and pressure sensor, is for system pressure
For the air conditioner water circulating system of 0.6Mpa, the first water leakage threshold value, which is usually set as 1~2L, can meet leak detection requirement.
Two, the pressure sensor P1 of each floor, pressure sensor P2, pressure sensor P3 and pressure sensor P4 are examined in real time
The pressure of corresponding position is surveyed, and will test the electric cabinet 4 that signal sends corresponding floor to.
Three, the electric cabinet 4 of each floor is respectively by pressure sensor P1, pressure sensor P2, pressure sensor P3 and pressure
The corresponding leakage reference point of the pressure detection value of sensor P4 compares.
Four, as any pressure sensor P1 of a certain floor, pressure sensor P2, pressure sensor P3 and pressure sensor P4
Pressure detection value when being less than or equal to its corresponding leakage reference point, then judge the floor leak, the electric cabinet 4 of the floor to
Corresponding electric switching valve K1 and electric switching valve K2, which sends instruction, makes its closing, and sends leaking area letter to monitoring host computer 5
Breath；Monitoring host computer 5 receives leaking area information and is shown.
Five, duration is reacted according to system pressure, preset second water leakage threshold value and leak, tripping is appeared in leakage point
Force snesor P5 farthest check bit is set to condition, and the pressure feedback value of the position calculation pressure sensor P5 leaks reference as it
Value；The detection position refers to the position of pressure sensor P1, pressure sensor P2, pressure sensor P3 or pressure sensor P4
It sets.
In view of the distance and pressure sensor P5 of leakage point are to reaction time of leak, usually by the second water leakage threshold
Value is set as the larger value, such as the air conditioner water circulating system that system pressure is 0.6Mpa, the second water leakage threshold value is usually set as 5~
10L。
Six, the pressure of its position of pressure sensor P5 real-time detection, and will test signal and send monitoring host computer 5 to；Monitoring
Host 5 compares the corresponding leakage reference point of the pressure detection value of pressure sensor P5.
Seven, when the pressure detection value of pressure sensor P5 is less than or equal to its corresponding leakage reference point, monitoring host computer 5
Sending instruction to the electric cabinet 4 of each floor makes it close corresponding electric switching valve K1 and electric switching valve K2；The electricity of each floor
Control case 4, which is respectively compared, closes electric switching valve K1 and electric switching valve K2 front and back pressure sensor P1, pressure sensor P2, pressure
The pressure detection value variable quantity of sensor P3 and pressure sensor P4.
Eight, as any pressure sensor P1 of a certain floor, pressure sensor P2, pressure sensor P3 and pressure sensor P4
Pressure detection value variable quantity when being more than pressure difference preset value, then judge the floor leak, electric cabinet 4 is sent to monitoring host computer 5 to be leaked
Water location information, and remain turned-off corresponding electric switching valve K1 and electric switching valve K2, otherwise electric cabinet 4 is to corresponding electricity
Dynamic switch valve K1 and electric switching valve K2, which sends instruction, makes its opening.
Nine, when the pressure of all floor pressure sensor P1, pressure sensor P2, pressure sensor P3 and pressure sensor P4
When power detected value variable quantity is less than pressure difference preset value, then water main 1, return main 1 ' or air-conditioner set leak are judged,
Monitoring host computer 5, which sends instruction to the electric cabinet 4 of each floor, makes it be again switched off corresponding electric switching valve K1 and electric switching valve
K2, and sending instruction to air-conditioner set keeps its out of service, while showing leaking area information.
Above embodiments are only the descriptions carried out to preferred embodiments of the present invention, are not asked to the utility model
The restriction for seeking protection scope, under the premise of not departing from the spirit of the design of the utility model, this field engineers and technicians are according to this
The various forms of deformations that the technical solution of utility model is made should all fall into the guarantor that claims of the utility model determine
It protects in range.
Claims (5)
1. a kind of air conditioner water circulating system leakage monitoring system, the air conditioner water circulating system includes the confession connecting with air-conditioner set
Supply mains (1) and return main (1 '), each floor are respectively equipped with the corresponding confession connecting with water main (1) and return main (1 ')
Water conduit tube (2) and return water main pipe (2 '), the air conditioning terminal of each floor passes through water supply branch pipe (3) respectively and return branch (3 ') is corresponding
With being connect for water conduit tube (2) and return water main pipe (2 ') for the floor, which is characterized in that the leakage monitoring system includes that setting exists
Pressure sensor P1 and electric switching valve K1, setting on each floor return water main pipe (2 ') are in each floor on water conduit tube (2)
Electric switching valve K2, the electric cabinet (4) that each floor is set, pressure sensor P1, the electric switching valve K1 of each floor and electronic
Switch valve K2 is connected with the electric cabinet of corresponding floor (4) respectively, the electric cabinet (4) of each floor with monitoring that Central Control Room is set
Host (5) connection；The pressure sensor P1 is between return branch (3 ') and return main (1 '), the electric switching valve
K1 is between pressure sensor P1 and return main (1 '), and the electric switching valve K2 is in water supply branch pipe (3) and supplies water total
It manages between (1)；The electric cabinet (4) is equipped with PLC/DDC controller.
2. a kind of air conditioner water circulating system leakage monitoring system described in accordance with the claim 1, which is characterized in that further include setting
Pressure sensor P2 on each floor return branch (3 '), and the pressure sensing being arranged on each floor water supply branch pipe (3)
Device P3, the pressure sensor P2 and pressure sensor P3 of each floor are connected with the electric cabinet of corresponding floor (4) respectively.
3. a kind of air conditioner water circulating system leakage monitoring system according to claim 2, which is characterized in that further include setting
In each floor for the pressure sensor P4 on water conduit tube (2), and pressure sensor P4 is made to be in water supply branch pipe (3) and motor switch
Between valve K2, the pressure sensor P4 of each floor is connected with the electric cabinet (4) of corresponding floor.
4. a kind of air conditioner water circulating system leakage monitoring system described in accordance with the claim 3, which is characterized in that further include setting
Pressure sensor P5 at the top of return main (1 '), pressure sensor P5 are connect with monitoring host computer (5).
5. a kind of air conditioner water circulating system leakage monitoring system according to claim 4, which is characterized in that the electric cabinet
(4) Analog input mModule and digital quantity output module connecting respectively with PLC/DDC controller are equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821813773.1U CN208998278U (en) | 2018-11-05 | 2018-11-05 | A kind of air conditioner water circulating system leakage monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821813773.1U CN208998278U (en) | 2018-11-05 | 2018-11-05 | A kind of air conditioner water circulating system leakage monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208998278U true CN208998278U (en) | 2019-06-18 |
Family
ID=66807317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821813773.1U Active CN208998278U (en) | 2018-11-05 | 2018-11-05 | A kind of air conditioner water circulating system leakage monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208998278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297135A (en) * | 2018-11-05 | 2019-02-01 | 北京中创绿色系统科技有限公司 | A kind of air conditioner water circulating system leakage monitoring system and automatic control method |
-
2018
- 2018-11-05 CN CN201821813773.1U patent/CN208998278U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297135A (en) * | 2018-11-05 | 2019-02-01 | 北京中创绿色系统科技有限公司 | A kind of air conditioner water circulating system leakage monitoring system and automatic control method |
| CN109297135B (en) * | 2018-11-05 | 2024-01-30 | 北京中创绿色系统科技有限公司 | Leakage monitoring system and self-control method for air conditioner water circulation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203940562U (en) | A kind of domestic air conditioning cold air floor heating hot water air cleaning tetrad machine | |
| CN1195184C (en) | Cooling air conditioner unit fault simulating and diagnosing system | |
| CN103953996A (en) | Bidirectional flow host machine and control method thereof | |
| CN104329836A (en) | Refrigerant automatic recycling air conditioner system and control method thereof | |
| CN110285541B (en) | Multi-split air conditioner leakage position automatic positioning method, device and equipment | |
| CN208998278U (en) | A kind of air conditioner water circulating system leakage monitoring system | |
| CN201859041U (en) | Defect detection device for floor radiant heating buried coil pipe | |
| CN104990225A (en) | Capillary tube system controller | |
| CN201351980Y (en) | Central air conditioner energy-saving control system | |
| CN214333008U (en) | Indoor air-conditioning system | |
| CN203478479U (en) | Integrated module system installed in air-conditioner room | |
| CN206361887U (en) | Air conditioner heat pump hot water | |
| CN209689229U (en) | Soil source heat pump ground temperature compensation energy-saving system | |
| CN109297135A (en) | A kind of air conditioner water circulating system leakage monitoring system and automatic control method | |
| CN203869249U (en) | Bidirectional-flow main engine | |
| CN205536657U (en) | Energy -conserving concurrent heating device of ground -source heat pump | |
| CN204757231U (en) | Intelligent water collecting and dividing device of ground lotus root well heat transfer system | |
| CN107726659A (en) | Air source heat pump/solar energy heat pump system installation and debugging practice training examination device | |
| CN109883026A (en) | A kind of air-conditioning system and its control method of independent temperature-humidity control | |
| CN205561162U (en) | Air quality governing system | |
| CN114893886A (en) | Integrated energy-saving control system and control method for centralized heating ventilation air conditioner | |
| CN202770083U (en) | Ground source heat pump unit capable of preventing valve from leaking | |
| CN208365865U (en) | A kind of solar heat water type refrigeration system | |
| CN115950059B (en) | Device and method for judging and alarming channeling of working condition switching valve of ground source heat pump system | |
| CN208523129U (en) | A kind of multi-source fusion refrigeration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |