CN202868304U - Low temperature constant pressure liquid supplying device - Google Patents
Low temperature constant pressure liquid supplying device Download PDFInfo
- Publication number
- CN202868304U CN202868304U CN 201220517011 CN201220517011U CN202868304U CN 202868304 U CN202868304 U CN 202868304U CN 201220517011 CN201220517011 CN 201220517011 CN 201220517011 U CN201220517011 U CN 201220517011U CN 202868304 U CN202868304 U CN 202868304U
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- solution tank
- low temperature
- naoh
- fluid infusion
- naoh solution
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Abstract
The utility model provides a low temperature constant pressure liquid supplying device which comprises a liquid supplying box, a solution tank and an expansion tank, wherein a bottom outlet of the liquid supplying box is connected with a bottom inlet of the solution tank through a liquid supplying pump, an outlet at the upper portion of the solution tank is connected with a reflux inlet of the liquid supplying box, a bottom inlet of the solution tank and a reflux inlet at the upper portion of the solution tank are respectively communicated with a main circulating liquid path system to form a return circuit, and a top port of the solution tank is connected with a bottom port of the expansion tank. The low temperature constant pressure liquid supplying device has the advantages of being high in low temperature adaptability and degree of automation and good in safety performance. Constant pressure liquid supplying can be conduct by a cooling device under the condition of low temperature and thereby a certain elastic space is arranged inside the cooling liquid circulating system when the temperature changes and safety of closed type circulating system operation is ensured.
Description
Technical field
The utility model relates to a kind of cooling equipment, is specifically related to the level pressure liquid supply device of major cycle liquid-way system under low temperature condition in a kind of cooling equipment.
Background technique
At present, the cooling equipment that low temperature environment uses has been widely used in the cooling of the military-civil equipment such as precision machine tool, Laser Equipment, radar equipment, and its function is to produce freezing liquid, is heating load cooling.Cooling equipment comprises heat-exchange system, major cycle liquid-way system, level pressure fluid infusion system, wherein the level pressure fluid infusion system mainly is in order to guarantee the pressure stability on closed system major cycle liquid road, and in time replenish when occuring to leak in system circulating liquid with certain back pressure for system normally, safely operation.
The cooling equipment major cycle liquid-way system that heat exchange is used with water circulation system and normal temperature in the common buildings generally adopts the modes such as air sac type Constant pressure tank, variable frequency pump or pressurized by elevated expansion tank to come level pressure.But the cooling system for the low temperature environment use, such as the 66% ethylene glycol solution circulatory system-40 ℃ of needs start work, because the spatial position characteristics of load, swelling water tank does not adopt substantially, and the rubber bag tank in the air bag expansion drum can make rubber follow the string and lost efficacy because not bearing-40 ℃ of low temperature environments; The frequency variator of variable frequency pump to bear cryogenic temperature limited, variable frequency pump easily produces electromagnetic interference on the other hand, and affects the antijamming capability of cooling equipment.
The model utility content
The utility model will solve above-mentioned deficiency exactly, the level pressure liquid supply device of major cycle liquid-way system in a kind of cooling equipment under low temperature condition is provided, make coolant circulation system inside when temperature variation have certain elastic space, guarantee the safety in operation of enclosed major circulatory system.
In order to reach above-mentioned effect, the utility model provides a kind of low temperature level pressure liquid supply device, comprise fluid infusion case, NaOH solution tank NaOH and expansion drum, described fluid infusion case bottom outlet is connected with described NaOH solution tank NaOH bottom inlet by the fluid infusion pump, and the outlet on NaOH solution tank NaOH top is connected with the refluxing opening of fluid infusion case; Described NaOH solution tank NaOH bottom outlet is communicated with respectively the formation loop with the liquid return hole on top with the major cycle liquid-way system; The top interface of described NaOH solution tank NaOH is connected with the bottom interface of described expansion drum.
Described expansion drum is without the bladder-type expansion drum, and its low temperature adaptability is good, makes the level pressure liquid supply device safer stable,
Described expansion drum top is provided with pressure transducer, pressure gauge and suction valve.
The outlet on described NaOH solution tank NaOH top is connected by the refluxing opening of ball valve with the fluid infusion case.
Between the top interface of the outlet of described ball valve and NaOH solution tank NaOH and connect a safety valve.
Described NaOH solution tank NaOH bottom outlet is communicated with the formation loop by detachable stop valve respectively with the liquid return hole on top with the major cycle liquid-way system.
All be electrically connected with controller in the major cycle liquid-way system without liquid-level switch, pressure transducer and the fluid infusion pump of air sac type expansion drum in the utility model.When the liquid level in liquid-level switch detects expansion drum was too high, controller can provide guard sign and be convenient to Integrated Checkout, reduces liquid level by the suction valve without the air sac type expansion drum.Pressure transducer detects the pressure in the major cycle liquid-way system, and it is fed back to controller, actual back pressure value and the back pressure required value of setting according to load height are compared, and fluid infusion time and the cycle of controller by control fluid infusion pump controlled pressure in the major cycle liquid-way system.Also can carry out by the pressure gauge without air sac type expansion drum top viewing system internal pressure numerical value directly perceived.Then continue fluid infusion when being lower than the back pressure value such as pressure; Then the fluid infusion pump quits work when pressure is higher than the back pressure value, namely stops to export cooling liquid, and cooling equipment is in the reasonable back pressure ranges all the time.
The position that should be higher than NaOH solution tank NaOH without the position of air sac type expansion drum placement, the size of NaOH solution tank NaOH depend on that the size of cooling equipment heat exchange amount reaches the stability requirement to temperature; The big or small fibrous root of the height of the liquid return hole of NaOH solution tank NaOH and expansion drum decides according to load height and solution maximum temperature difference Volume Changes value, when fluid infusion can be pressurizeed to the surplus air of NaOH solution tank NaOH internal upper part during to liquid return hole top, requiring automatically according to pressure transducer collection value and back pressure value, control fills solution amount.
When this device internal pressure causes when excessive because of other situation, safety valve that can be by NaOH solution tank NaOH is released cooling liquid to the fluid infusion case and is reduced pressure, to playing a protective role of cooling equipment.
So this device has the advantages that low temperature adaptability is strong, automaticity is high, Safety performance is good, and allow the cooling equipment low temperature condition carry out the level pressure fluid infusion, make coolant circulation system inside when temperature variation have certain elastic space, guarantee the closed circulation system safety in operation.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the utility model structural representation;
Among the figure: 1-fluid infusion case, 2-fluid infusion pump, 3-NaOH solution tank NaOH, the detachable stop valve of 4-, 5-major cycle liquid-way system, 6-ball valve, 7-safety valve, 8-be without the bladder-type expansion drum, 81-liquid-level switch, 82-suction valve, 83-pressure transducer, 84-pressure gauge.
Embodiment
As shown in Figure 1, a kind of low temperature level pressure liquid supply device, comprise fluid infusion case 1, NaOH solution tank NaOH 3 with without bladder-type expansion drum 8, described fluid infusion case 1 bottom outlet is connected with described NaOH solution tank NaOH 3 bottom inlets by fluid infusion pump 2, the outlet on NaOH solution tank NaOH 3 tops is passed through ball valve 6 and is connected with the refluxing opening of fluid infusion case 1; NaOH solution tank NaOH 3 bottom outlets are communicated with the formation loop by detachable stop valve 4 respectively with the liquid return hole on top with major cycle liquid-way system 5; The top interface of NaOH solution tank NaOH 3 is connected with bottom interface without bladder-type expansion drum 8; Between the top interface of the outlet of ball valve 6 and NaOH solution tank NaOH 3 and access security valve 7; Top without bladder-type expansion drum 8 is provided with liquid-level switch 81, pressure transducer 83, pressure gauge 84 and suction valve 82.
All be electrically connected with controller in the major cycle liquid-way system without liquid-level switch, pressure transducer and the fluid infusion pump of air sac type expansion drum in the utility model.When the liquid level in liquid-level switch detects expansion drum was too high, controller can provide guard sign and be convenient to Integrated Checkout; Pressure transducer detects the pressure in the major cycle liquid-way system, and it is fed back to controller, actual back pressure value and the back pressure required value of setting according to load height are compared, and fluid infusion time and the cycle of controller by control fluid infusion pump controlled pressure in the major cycle liquid-way system.Then continue fluid infusion when being lower than the back pressure value when pressure; Then the fluid infusion pump quits work when pressure is higher than the back pressure value, namely stops to export cooling liquid, and cooling equipment is in the reasonable back pressure ranges all the time.
The specific works process of this device is as follows:
As shown in Figure 1, cooling equipment needs its fluid infusion and back pressure after coolant system connection debugging is complete, in the fluid infusion initial procedure, air in the major cycle liquid-way system 5 carries out exhaust by heating load top automatic control pressure vent, can open ball valve 6 and increase exhaust velocity, when finding that fluid infusion case 1 has reflux solution, need close ball valve 6 and continue fluid infusion, the air in the circulating line can continue by outlet valve emptying.Liquid level in the NaOH solution tank NaOH 3 is in a line place, and its top air then is stored in the NaOH solution tank NaOH 3.Along with the pressure in the major cycle liquid-way system 5 raise, NaOH solution tank NaOH 3 tops and compressed without the air in the bladder-type expansion drum 8, liquid level arrives b line place, and this is just so that keep balance with the pressure of major cycle liquid-way system 5.In pressure process progressively, when pressure transducer sense 83 detected major cycle liquid-way system 5 internal pressure values and reaches the system back pressure setting value, fluid infusion pump 2 stopped fluid infusion.Cooling equipment is opened rear along with solution temperature rises, and the rising of NaOH solution tank NaOH internal pressure continues to be compressed without the air in the bladder-type expansion drum 8, and liquid level continues rising and arrives c line place.And exceed back pressure ranges and during greater than certain secure setting, safety valve 7 beginning pressure releases are protected system when pressure.
Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (6)
1. a low temperature level pressure liquid supply device comprises fluid infusion case, NaOH solution tank NaOH and expansion drum, it is characterized in that: described fluid infusion case bottom outlet is connected with described NaOH solution tank NaOH bottom inlet by the fluid infusion pump, and the outlet on NaOH solution tank NaOH top is connected with the refluxing opening of fluid infusion case; Described NaOH solution tank NaOH bottom outlet is communicated with respectively the formation loop with the liquid return hole on top with the major cycle liquid-way system; The top interface of described NaOH solution tank NaOH is connected with the bottom interface of described expansion drum.
2. a kind of low temperature level pressure liquid supply device according to claim 1 is characterized in that: described expansion drum is for without the bladder-type expansion drum.
3. a kind of low temperature level pressure liquid supply device according to claim 1, it is characterized in that: described expansion drum top is provided with pressure transducer, pressure gauge and suction valve.
4. a kind of low temperature level pressure liquid supply device according to claim 1, it is characterized in that: the outlet on described NaOH solution tank NaOH top is connected by the refluxing opening of ball valve with the fluid infusion case.
5. a kind of low temperature level pressure liquid supply device according to claim 4 is characterized in that: between the top interface of the outlet of described ball valve and NaOH solution tank NaOH and connect a safety valve.
6. a kind of low temperature level pressure liquid supply device according to claim 1 is characterized in that: described NaOH solution tank NaOH bottom outlet is communicated with the major cycle liquid-way system by detachable stop valve respectively with the liquid return hole on top and consists of the loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220517011 CN202868304U (en) | 2012-10-10 | 2012-10-10 | Low temperature constant pressure liquid supplying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220517011 CN202868304U (en) | 2012-10-10 | 2012-10-10 | Low temperature constant pressure liquid supplying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202868304U true CN202868304U (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220517011 Expired - Fee Related CN202868304U (en) | 2012-10-10 | 2012-10-10 | Low temperature constant pressure liquid supplying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202868304U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359275A (en) * | 2014-11-08 | 2015-02-18 | 合肥天鹅制冷科技有限公司 | Circulating liquid fixed-pressure supplementing and recovery device |
| CN104713281A (en) * | 2015-03-19 | 2015-06-17 | 合肥天鹅制冷科技有限公司 | Efficient cooling liquid supplementing and draining system used for cooling liquid unit |
| CN105431020A (en) * | 2015-12-29 | 2016-03-23 | 曙光信息产业(北京)有限公司 | Liquid cooling system for server |
| CN109946054A (en) * | 2019-03-21 | 2019-06-28 | 中国科学院高能物理研究所 | A kind of low temperature supercooling circulatory system and low-temperature circulating pump test macro |
| CN112728412A (en) * | 2020-12-04 | 2021-04-30 | 天津天锻航空科技有限公司 | Full-isolation type emulsion system of liquid-filling forming hydraulic machine |
| CN113375060A (en) * | 2021-06-06 | 2021-09-10 | 中国长江电力股份有限公司 | Emergency oil supplementing device and method for pressure container of hydraulic system of hydraulic turbine speed regulator |
| CN113669962A (en) * | 2021-08-19 | 2021-11-19 | 合肥亦威科技有限公司 | Temperature control system with built-in pressure balancing device |
| CN114165729A (en) * | 2020-09-11 | 2022-03-11 | 安瑞科(廊坊)能源装备集成有限公司 | Online temperature adjusting device for LNG (liquefied Natural gas) filling and LNG filling method |
-
2012
- 2012-10-10 CN CN 201220517011 patent/CN202868304U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359275A (en) * | 2014-11-08 | 2015-02-18 | 合肥天鹅制冷科技有限公司 | Circulating liquid fixed-pressure supplementing and recovery device |
| CN104713281A (en) * | 2015-03-19 | 2015-06-17 | 合肥天鹅制冷科技有限公司 | Efficient cooling liquid supplementing and draining system used for cooling liquid unit |
| CN105431020A (en) * | 2015-12-29 | 2016-03-23 | 曙光信息产业(北京)有限公司 | Liquid cooling system for server |
| CN105431020B (en) * | 2015-12-29 | 2018-10-30 | 曙光信息产业(北京)有限公司 | Liquid cooling system for server |
| CN109946054A (en) * | 2019-03-21 | 2019-06-28 | 中国科学院高能物理研究所 | A kind of low temperature supercooling circulatory system and low-temperature circulating pump test macro |
| CN114165729A (en) * | 2020-09-11 | 2022-03-11 | 安瑞科(廊坊)能源装备集成有限公司 | Online temperature adjusting device for LNG (liquefied Natural gas) filling and LNG filling method |
| CN114165729B (en) * | 2020-09-11 | 2024-05-17 | 安瑞科(廊坊)能源装备集成有限公司 | Online temperature adjusting device for LNG filling and LNG filling method |
| CN112728412A (en) * | 2020-12-04 | 2021-04-30 | 天津天锻航空科技有限公司 | Full-isolation type emulsion system of liquid-filling forming hydraulic machine |
| CN113375060A (en) * | 2021-06-06 | 2021-09-10 | 中国长江电力股份有限公司 | Emergency oil supplementing device and method for pressure container of hydraulic system of hydraulic turbine speed regulator |
| CN113375060B (en) * | 2021-06-06 | 2022-07-19 | 中国长江电力股份有限公司 | Emergency oil supplementing device and method for pressure container of hydraulic system of hydraulic turbine governor |
| CN113669962A (en) * | 2021-08-19 | 2021-11-19 | 合肥亦威科技有限公司 | Temperature control system with built-in pressure balancing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20181010 |