CN217110004U - Anti-freezing system of hydraulic module - Google Patents
Anti-freezing system of hydraulic module Download PDFInfo
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- CN217110004U CN217110004U CN202220360964.7U CN202220360964U CN217110004U CN 217110004 U CN217110004 U CN 217110004U CN 202220360964 U CN202220360964 U CN 202220360964U CN 217110004 U CN217110004 U CN 217110004U
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Abstract
The utility model relates to a hydraulic power technical field specifically relates to a freeze-proof system of hydraulic power module. The utility model provides an anti-freezing system of a hydraulic module, which comprises a three-way valve communicated with a water outlet of the hydraulic module; the outdoor water tank is provided with a heat exchange pipeline, one end of the heat exchange pipeline is communicated with one outlet of the three-way valve, and the other end of the heat exchange pipeline is communicated with a water inlet of the hydraulic module; the water tank temperature sensor is arranged in the outdoor water tank and used for detecting the water temperature of the outdoor water tank; and the control part is in communication connection with the water tank temperature sensor, and the control part controls the on-off of the three-way valve at least partially according to the water temperature of the outdoor water tank. The anti-freezing system of the hydraulic module is provided with the water tank temperature sensor, so that the water temperature in the outdoor water tank can be fed back in time, and the phenomenon that the water tank freezes or even breaks due to the outdoor environment temperature is avoided.
Description
Technical Field
The utility model relates to a hydraulic power technical field specifically relates to a freeze-proof system of water conservancy module.
Background
The hydraulic module is a device for exchanging heat between a refrigerant and water, and the water flow and the refrigerant flow in a pipeline of the hydraulic module to exchange temperature. When the temperature is lower than 0 ℃, the water in the pipeline can be frozen and frozen, and the freezing can expand the volume of the water in the pipeline due to the fact that the density of the ice is lower than that of the water, and further the water pipe can be broken.
In the prior art, in order to avoid the above situations, a common hydraulic module is provided with a corresponding anti-freezing module, that is, a heating component is arranged near a water flow pipeline, and when the temperature is low, the water flow pipeline is heated, so that the water in the pipeline is prevented from freezing. Generally, the conventional anti-freezing system starts/stops the heating component to perform anti-freezing heating by measuring the temperature of the water inlet and/or the water outlet of the hydraulic module and comparing the temperature with a preset anti-freezing threshold value. However, the hydraulic module is likely to be connected with a pipeline and a water tank arranged outdoors, the temperature change of the pipeline and the water tank is difficult to be fed back timely, when the outdoor pipeline and the water tank begin to freeze due to the outdoor environment temperature, the water tank may burst to cause that the function of the hydraulic module connected with the outdoor water tank cannot be used, and even the normal work of the hydraulic module itself can be influenced.
SUMMERY OF THE UTILITY MODEL
To above problem, the utility model provides a system of preventing frostbite of water conservancy module has set up temperature sensor in the outdoor water tank department of water conservancy module to in time feed back the temperature in the outdoor water tank, avoid it to freeze or even break because outdoor ambient temperature takes place.
The technical scheme of the utility model in provide frostproofing system of water conservancy module, include
The three-way valve is communicated with the water outlet of the hydraulic module;
the outdoor water tank is provided with a heat exchange pipeline, one end of the heat exchange pipeline is communicated with one outlet of the three-way valve, and the other end of the heat exchange pipeline is communicated with a water inlet of the hydraulic module;
the water tank temperature sensor is arranged in the outdoor water tank and used for detecting the water temperature of the outdoor water tank;
and the control part is in communication connection with the water tank temperature sensor, and the control part controls the on-off of the three-way valve at least partially according to the water temperature of the outdoor water tank.
According to the technical scheme of the utility model, the system of preventing frostbite of water conservancy module has set up water tank temperature sensor on outdoor water tank, the temperature in outdoor water tank can be known according to water tank temperature sensor's feedback signal to the control part, compare the temperature that water tank temperature sensor detected with predetermined frostproofing threshold value, and then the break-make of temperature and the comparative result control three-way valve of predetermined frostproofing threshold value that detects according to water tank temperature sensor, make the inside pipeline of water conservancy module and the heat transfer pipeline of outdoor water tank communicate, through the water circulation motion between the two, avoid taking place rivers among outdoor water tank and the heat transfer pipeline and freeze the condition that even water tank and/or heat transfer pipeline burst.
Preferably, in the technical solution of the present invention, the anti-freezing system of the hydraulic module further includes
The first electric heater is arranged in the outdoor water tank and is in communication connection with the control part, and the control part controls the switch of the first electric heater at least partially according to the water temperature of the outdoor water tank.
According to the technical scheme of the utility model, the temperature that control portion detected water tank temperature sensor compares with predetermined freeze-proof threshold value, and then according to the temperature that water tank temperature sensor detected and the break-make of predetermined temperature threshold value's comparative result control three-way valve and first electric heater's switch, the temperature that detects at water tank temperature sensor is less than freeze-proof threshold value promptly, opens first electric heater and heats outdoor water tank to prevent that the rivers in outdoor water tank and the heat transfer pipeline freeze.
The technical scheme of the utility model in, the system of preventing frostbite of water conservancy module still includes the two-way valve, and two-way valve one end communicates with the water inlet of water conservancy module, and the other end of two-way valve is connected to with can the equipment via circulating water pump. The energy utilization equipment is communicated with the hydraulic module through the two-way valve, and the on-off between the energy utilization equipment and the hydraulic module can be controlled through the two-way valve.
Further, in the technical scheme of the utility model, another export of the three-way valve in the frostproofing system of water conservancy module is connected to with can the equipment. And water flow in the hydraulic module flows into the energy utilization equipment through the three-way valve, circulates in the energy utilization equipment and returns to the hydraulic module through the two-way valve, so that hydraulic circulation between the hydraulic module and the energy utilization equipment is realized.
The technical scheme of the utility model among, the system of preventing frostbite of water conservancy module still includes second electric heater, sets up between the heat exchanger of water conservancy module and delivery port, second electric heater and control part communication connection. The second electric heater is used for heating the water flow flowing out of the heat exchanger in the hydraulic module.
Further, the technical scheme of the utility model wherein, the anti-freezing system of water conservancy module is still including setting up in the heat exchanger of the delivery port of heat exchanger play water temperature sensor, heat exchanger play water temperature sensor and control part communication connection. The heat exchanger water outlet temperature sensor can detect the temperature at the water outlet of the heat exchanger, namely the temperature when water flows out of the heat exchanger, and feeds the temperature back to the control part, and the control part can feed back the temperature at the water outlet of the heat exchanger to control the on-off and power of the second electric heater.
Preferably, the technical scheme of the utility model the anti-freezing system of water conservancy module is still including setting up in the temperature sensor of intaking of the water inlet of water conservancy module to and set up in the leaving water temperature sensor of the delivery port of water conservancy module, intake temperature sensor and leaving water temperature sensor all with control part communication connection.
According to the technical scheme of the utility model, the temperature of water conservancy module water inlet and delivery port department can be detected and fed back to temperature sensor and the delivery port department of intaking, combines foretell water tank temperature sensor to detect and feed back the temperature of outdoor water tank and the temperature of the delivery port department that heat exchanger delivery port temperature sensor detected and fed back the heat exchanger, can obtain the rivers temperature value of each node in the hydraulic circuit that whole water conservancy module and outdoor water tank are constituteed, synthesizes the rivers temperature situation among the judgement entire system. And according to the water flow temperature value of each node, the control module can more accurately adjust the heating efficiency of the first electric heater and the second electric heater, and accurate and comprehensive hydraulic freeze prevention is realized.
Further, the technical scheme of the utility model the control part of the system of preventing frostbite of water conservancy module gets into or withdraws from the mode of preventing frostbite according to the minimum of the temperature that detects among water tank temperature sensor, the temperature sensor of intaking, the leaving water temperature sensor, the heat exchanger leaving water temperature sensor.
According to the technical scheme of the utility model, get into or withdraw from the mode of preventing frostbite according to the minimum of the temperature of each node, just can get into the mode of preventing frostbite when certain node temperature is lower to guarantee to withdraw from the mode of preventing frostbite again after whole node temperatures rise, avoid the single-point temperature to hang down the partial return circuit that leads to and freeze excessively.
In the technical proposal of the utility model, the anti-freezing modes of the anti-freezing system of the hydraulic module comprise a primary anti-freezing mode and a secondary anti-freezing mode,
in the primary anti-freezing mode, the first electric heater and the second electric heater are switched off;
in the secondary antifreeze mode, the first electric heater and/or the second electric heater is/are turned on.
According to the technical scheme of the utility model, in the primary anti-freezing mode, only the water flow between the hydraulic module and the outdoor water tank needs to keep circular motion, namely, the water flow temperature between pipelines is exchanged for anti-freezing, and an electric heater does not need to be started to save energy consumption; in the secondary anti-freezing mode, the first electric heater and/or the second electric heater are/is started to accelerate the temperature rise of water flow in the pipeline, and the anti-freezing effect of an anti-freezing system of the hydraulic module is guaranteed.
Drawings
Fig. 1 is a schematic view of an antifreeze system for a hydro module provided in an embodiment of the present invention;
fig. 2 is a schematic diagram of an antifreeze system of a preferred hydro module provided in an embodiment of the present invention.
Reference numerals: 1-a hydraulic module, 10-a heat exchange pipeline, 11-a water outlet, 12-a water inlet, 2-a three-way valve, 3-an outdoor water tank, 41-a water tank temperature sensor, 42-a heat exchanger water outlet temperature sensor, 43-a water inlet temperature sensor, 44-a water outlet temperature sensor, 51-a first electric heater, 52-a second electric heater, 6-a two-way valve, 71-a water pump, 72-a circulating water pump, 8-energy utilization equipment and 9-a heat exchanger.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
FIG. 1 is a schematic view of an antifreeze system for a hydro module with arrows indicating water flow direction. As shown in FIG. 1, in an embodiment of the present invention, an anti-freeze system for a hydro module 1 is provided, comprising
The three-way valve 2 is a valve device with three interfaces and comprises an inlet of water flow and two outlets of water flow, wherein the inlet is communicated with the water outlet 11 of the hydraulic module 1, and one outlet is communicated with the water inlet of the outdoor water tank 3;
the outdoor water tank 3 is provided with a heat exchange pipeline, one end of the heat exchange pipeline is communicated with one outlet of the three-way valve 2, and the other end of the heat exchange pipeline is communicated with the water inlet 12 of the hydraulic module 1;
a tank temperature sensor 41 provided in the outdoor tank 3 for detecting the temperature of the water in the outdoor tank 3;
and a control part (not shown) which is in communication connection with the water tank temperature sensor 41 and controls the on-off of the three-way valve 2 at least partially according to the water temperature of the outdoor water tank 3.
Furthermore, the hydro module 1 is connected with a heat exchange line 10, which is in communication with a heat pump (not shown), which adjusts the temperature of the water flow inside the hydro module 1 through the heat exchange line 10.
In the present embodiment, the water circulation between the hydro module 1 and the outdoor water tank 3 is: the water flow flows out from the water outlet 11 of the hydraulic module 1, enters the outdoor water tank 3 through the three-way valve 2, and then flows back to the hydraulic module 1 through the water inlet 12 of the hydraulic module 1.
The anti-freezing system of the hydraulic module 1 is provided with the water tank temperature sensor 41 on the outdoor water tank 3, the control part can know the water temperature in the outdoor water tank 3 according to the feedback signal of the water tank temperature sensor 41, and the water tank temperature value t detected by the water tank temperature sensor 41 1 Compared with a preset anti-freezing threshold value T, and then according to the water tank temperature value T detected by the water tank temperature sensor 41 1 And the on-off of the three-way valve 2 is controlled by the comparison result with the preset antifreezing threshold T.
Specifically, at the water tank temperature value t 1 When the temperature is higher than the anti-freezing threshold value T, the water temperature in the outdoor water tank 3 is in a normal range, and the outdoor water tank does not need to enter an anti-freezing mode; at the water tank temperature value t 1 When the temperature of the water in the outdoor water tank 3 is lower than the anti-freezing threshold value T, the water temperature in the outdoor water tank 3 is too low, and the water needs to enter an anti-freezing mode, namely the three-way valve 2 is opened, the water circulation between the hydraulic module 1 and the outdoor water tank 3 is started, and heat exchange is carried out through the water circulation movement between the hydraulic module 1 and the outdoor water tank 3, so that the water temperature in the outdoor water tank 3 is increased, and the situation that the water flow in the outdoor water tank 3 and a heat exchange pipeline thereof is frozen or even the outdoor water tank 3 and/or the heat exchange pipeline are cracked is avoided.
Preferably, in the embodiment of the present invention, the anti-freezing system of the hydraulic module 1 further includes a first electric heater 51 disposed in the outdoor water tank 3 and communicatively connected to the control unit, and the control unit controls the first electric heater 51 to be turned on or off at least partially according to the water temperature of the outdoor water tank 3.
In particular, a first freeze protection threshold value T is preset 1 And a second freeze protection threshold T 2 ，T 1 ≥T 2 . The water tank temperature sensor 41 detects a water tank temperature value t 1 . Temperature value t of water tank 1 The temperature of the water in the tank may be detected, or the temperature of the water may be detected via the surface temperature of the tank, at t 1 ＞T 1 When the temperature of the water in the outdoor water tank 3 is in a normal range, the water does not need to enter an anti-freezing mode; at T 1 ＞t 1 ＞T 2 When the temperature of the water in the outdoor water tank 3 is low, the first anti-freezing mode needs to be entered, that is, the three-way valve 2 is opened, the water flow circulation between the hydraulic module 1 and the outdoor water tank 3 is started, and the temperature of each temperature point in the water flow path is balanced to raise the lowest temperature (here, the water tank temperature value t) 1 ) The high-power heater (such as an electric heater, a heat pump and the like) is not required to be started, so that the energy consumption is reduced, and the energy is saved and the environment is protected; at T 2 ＞t 1 When the temperature of the water in the outdoor water tank 3 is too low, the second anti-freezing mode needs to be entered, that is, the first electric heater 51 is turned on to directly heat the outdoor water tank 3, so as to quickly raise the temperature of the water in the outdoor water tank 3, and prevent the water from being frozen due to over-cooling.
Wherein, because in the operating state, the water flow circulation is maintained between the hydraulic module 1 and the outdoor water tank 3, i.e. the three-way valve 3 is opened, in other words, the hydraulic module 1 and the outdoor water tank 3 in the operating state are in the first antifreeze mode themselves. Therefore, only the primary antifreeze mode, i.e. the second antifreeze mode, is in the operating state.
Wherein the first freeze protection threshold value T 1 Can be 3-8 deg.C, and second antifreezing threshold T 2 May be 0 to 3 ℃ and is not limited herein. It is worth mentioning that the control part can also be used for controlling the water tank according to the water tank temperature value t 1 Adjusting the working efficiency of the first electric heater 51 and the tank temperature t 1 The lower the first electric heater 51The higher the working efficiency is, in order to quickly raise the temperature of the water in the outdoor water tank 3.
FIG. 2 is a schematic view of a preferred freeze protection system for a hydro module with arrows indicating the direction of water flow. As shown in fig. 2, in the embodiment of the present invention, the anti-freezing system of the hydraulic module 1 further includes a two-way valve 6, one end of the two-way valve 6 is communicated with the water inlet 12 of the hydraulic module 1, and the other end of the two-way valve 6 is connected to the energy utilization device 8 via the circulating water pump 72. The energy utilization equipment 8 is communicated with the hydraulic module 1 through the two-way valve 6, and the on-off between the energy utilization equipment 8 and the hydraulic module 1 can be controlled through the two-way valve 6.
Further, in an embodiment of the invention, the other outlet of the three-way valve 2 in the anti-freeze system of the hydro module 1 is connected to the energy usage device 8. The water flow in the hydraulic module 1 flows into the energy utilization equipment 8 through the three-way valve 2, and returns to the hydraulic module 1 through the two-way valve 6 after circulating inside the energy utilization equipment 8, so that the hydraulic circulation between the hydraulic module 1 and the energy utilization equipment 8 is realized. In other words, the on-off of the three-way valve 2 and the two-way valve 6 can control the hydraulic module 1 to be communicated with the outdoor water tank 3/energy utilization equipment 8 respectively. The energy utilization device 8 may be, for example, a floor heating module.
In the embodiment of the present invention, the anti-freezing system of the hydraulic module 1 further includes a second electric heater 52 disposed between the heat exchanger 9 and the water outlet 11 of the hydraulic module 1, and the second electric heater 52 is in communication connection with the control unit. The second electric heater 52 is used to heat the water stream flowing out of the heat exchanger 9 in the hydro module 1.
Further, in the embodiment of the present invention, the anti-freezing system of the hydraulic module 1 further includes a heat exchanger water outlet temperature sensor 42 disposed at the water outlet of the heat exchanger 9, and the heat exchanger water outlet temperature sensor 42 is in communication connection with the control unit. The heat exchanger outlet water temperature sensor 42 can detect the temperature at the water outlet of the heat exchanger 9, namely the heat exchanger outlet water temperature value t 2 And fed back to the control unit, and the control unit may perform switching and power control of the second electric heater 52 according to the temperature feedback at the water outlet of the heat exchanger 9.
Preferably, in the embodiment of the present invention, the anti-freezing system of the hydraulic module 1 further includes an inlet water temperature sensor 43 disposed at the water inlet 12 of the hydraulic module 1, and an outlet water temperature sensor 44 disposed at the water outlet 11 of the hydraulic module 1, wherein the inlet water temperature sensor 43 and the outlet water temperature sensor 44 are both in communication connection with the control portion.
In this embodiment, the inlet water temperature sensor 43 and the outlet water temperature sensor 44 can detect and feed back the inlet water temperature t of the hydro module 1 3 And outlet temperature t 4 The water tank temperature value t detected and fed back by combining the water tank temperature sensor 41 1 And the heat exchanger outlet water temperature value t detected and fed back by the heat exchanger outlet water temperature sensor 42 2 And the water flow temperature value of each node of the hydraulic loop formed by the whole hydraulic module 1 and the outdoor water tank 3 can be obtained, and the water flow temperature condition in the whole system can be comprehensively judged. And according to the water flow temperature value of each node, the control module can more accurately adjust the heating efficiency of the first electric heater 51 and the second electric heater 52, and accurate and comprehensive hydraulic freeze prevention is realized.
Further, in the embodiment of the present invention, the control part of the anti-freezing system of the hydraulic module 1 detects and feeds back the water tank temperature value t according to the water tank temperature sensor 41, the heat exchanger outlet water temperature sensor 42, the inlet water temperature sensor 43 and the outlet water temperature sensor 44 1 Temperature value t of outlet water of heat exchanger 2 Water inlet temperature t 3 And outlet temperature t 4 And enter or exit the antifreeze mode.
In the present embodiment, the temperature value t is determined according to the water tank temperature 1 Temperature value t of outlet water of heat exchanger 2 Water inlet temperature t 3 And outlet temperature t 4 The lowest value in the anti-freezing mode enters or exits from the anti-freezing mode, the anti-freezing mode can be entered when the temperature of a certain node is low, the anti-freezing mode is exited after the temperature of all nodes rises, and partial loop freezing caused by too low temperature of a single point is avoided.
In the embodiment of the present invention, the freeze prevention modes of the freeze prevention system of the hydro module 1 include a primary freeze prevention mode and a secondary freeze prevention mode,
in the primary freeze prevention mode, the first electric heater 51 and the second electric heater 52 are turned off;
in the secondary antifreeze mode, the first electric heater 51 and/or the second electric heater 52 are turned on.
According to the scheme, in the primary anti-freezing mode, high-power heaters (such as a heat pump, an electric heater and the like) do not need to be started, only the preset running time T of the states of opening the water pump 71, opening the three-way valve 2 and closing the two-way valve 6 is needed to be set, then the states of opening the water pump 71, closing the three-way valve 2 and opening the two-way valve 6 are switched to the preset running time T, after the time of 2T, the temperature of each node is detected again, and the next judgment is carried out, so that the water flow between the hydraulic module 1 and the outdoor water tank 3 and the energy utilization equipment 8 respectively keeps circulating motion, namely the lowest temperature is increased through the exchange of the water flow temperature among pipelines for anti-freezing; in the second-stage anti-freezing mode, the operation is performed in the modes of starting the heat pump, starting the first electric heater 51 and/or the second electric heater 52, starting the water pump 71, starting the three-way valve 2 and closing the two-way valve 6, so that the temperature rise of water flow in the pipeline is accelerated until the lowest water temperature in the temperature of each node rises to above a preset value, and the anti-freezing effect of the anti-freezing system of the hydraulic module 1 is ensured. Through setting up the two-stage mode of preventing frostbite, can the high-efficient energy utilization, compromise operation energy consumption and prevent frostbite efficiency.
In addition, some control methods of the anti-freezing system of the hydro module 1 can refer to the paragraphs [ 0008 ] to [ 0051 ] in the specification of the prior patent CN112594866A, which is not described herein in detail.
So far, the technical scheme of the invention has been described with the accompanying drawings. However, it is to be understood by those skilled in the art that the scope of the present invention is not limited to the specific embodiments described above. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall into the protection scope of the present invention.
Claims (9)
1. An anti-freezing system of a hydraulic module is characterized by comprising
The three-way valve is communicated with the water outlet of the hydraulic module;
the outdoor water tank is provided with a heat exchange pipeline, one end of the heat exchange pipeline is communicated with one outlet of the three-way valve, and the other end of the heat exchange pipeline is communicated with a water inlet of the hydraulic module;
the water tank temperature sensor is arranged in the outdoor water tank and used for detecting the water temperature of the outdoor water tank;
and the control part is in communication connection with the water tank temperature sensor, and controls the on-off of the three-way valve at least partially according to the water temperature of the outdoor water tank.
2. The antifreeze system of claim 1, further comprising
The first electric heater is arranged in the outdoor water tank and is in communication connection with the control part, and the control part controls the switch of the first electric heater at least partially according to the water temperature of the outdoor water tank.
3. The antifreeze system of claim 2, further comprising a two-way valve, one end of said two-way valve communicating with said water inlet of said hydro module, the other end of said two-way valve being connected to an energy-using device via a circulating water pump.
4. An antifreeze system as set forth in claim 3 wherein another outlet of said three-way valve is connected to said energy-consuming device.
5. The antifreeze system of claim 4, wherein said hydro module further comprises a second electric heater disposed between said heat exchanger of said hydro module and said water outlet, said second electric heater being in communication with said control section.
6. The anti-freezing system of claim 5, further comprising a heat exchanger outlet water temperature sensor disposed at a water outlet of the heat exchanger, wherein the heat exchanger outlet water temperature sensor is in communication connection with the control portion.
7. The anti-freezing system of claim 6, further comprising an inlet water temperature sensor disposed at the inlet of the hydro module and an outlet water temperature sensor disposed at the outlet of the hydro module, wherein the inlet water temperature sensor and the outlet water temperature sensor are both in communication with the control portion.
8. The antifreeze system according to claim 7, wherein said control portion enters or exits the antifreeze mode according to the lowest value of the temperatures detected in said water tank temperature sensor, said intake water temperature sensor, said outlet water temperature sensor, and said heat exchanger outlet water temperature sensor.
9. The antifreeze system of claim 8, wherein said antifreeze modes include a primary antifreeze mode and a secondary antifreeze mode,
in the primary anti-freezing mode, the first electric heater and the second electric heater are switched off;
in the secondary antifreeze mode, the first electric heater and/or the second electric heater is/are turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220360964.7U CN217110004U (en) | 2022-02-22 | 2022-02-22 | Anti-freezing system of hydraulic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220360964.7U CN217110004U (en) | 2022-02-22 | 2022-02-22 | Anti-freezing system of hydraulic module |
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| Publication Number | Publication Date |
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| CN217110004U true CN217110004U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220360964.7U Active CN217110004U (en) | 2022-02-22 | 2022-02-22 | Anti-freezing system of hydraulic module |
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| CN (1) | CN217110004U (en) |
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2022
- 2022-02-22 CN CN202220360964.7U patent/CN217110004U/en active Active
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