CN102539191B - Air-cooling cold (hot) water unit experiment device with surface-cooling coil pipe regulation function - Google Patents
Air-cooling cold (hot) water unit experiment device with surface-cooling coil pipe regulation function Download PDFInfo
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- CN102539191B CN102539191B CN201210002633.7A CN201210002633A CN102539191B CN 102539191 B CN102539191 B CN 102539191B CN 201210002633 A CN201210002633 A CN 201210002633A CN 102539191 B CN102539191 B CN 102539191B
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Abstract
The invention belongs to the field of refrigeration equipment product experiment devices and particularly relates to an air-cooling cold (hot) water unit experiment device with a surface-cooling coil pipe regulation function. The equipment device is respectively provided with independent surface-cooling coil pipes in air treatment units arranged at two sides of a machine to be tested, and is provided with a variable frequency circulation pump pipeline communicated with a constant temperature water tank for the surface-cooling coil pipes. Air return parts of condensers arranged at two sides of the machine to be tested are provided with a first air temperature sampler and a second air temperature sampler for measuring the air return dry-bulb temperature, the first air temperature sampler and the second air temperature sampler are respectively and electrically connected with a variable frequency water pump of the corresponding surface-cooling coil pipe through signal wires, further, the variable frequency pump of the corresponding surface-cooling coil pipe can be directly controlled through the air return dry-bulb temperature of the condensers arranged at two sides of the machine to be tested, the stable experiment effect is reached, and the additional cold and hot load investment is not needed. In the air-cooling cold (hot) water unit experiment device, the constant temperature water tank is communicated with a cooling tower system, the stable control of the temperature in the constant temperature water tank can be reached, and the additional electric heating investment is not needed, so the goal of sufficient energy saving is reached.
Description
Technical field
The invention belongs to refrigeration plant product testing device field, be specifically related to a kind of air-to-water heat pump test unit with Surface cooling coil regulatory function.
Background technology
In recent years, along with the variation of social demand, air-to-water heat pump product is constantly towards large scale development, separate unit maximum can have been accomplished 1600kw at present, in corresponding test unit, how fully the cooling and heating load being produced by test-run a machine wind side and water side is neutralized, so fully energy-conservation be very important problem.
Generally, can be chosen in the table cold loop that is provided with Surface cooling coil by test-run a machine wind side, balance by a part for test-run a machine and load by Surface cooling coil, carried out balance by test-run a machine wind side and the unnecessary cooling and heating load of water side by the cooling and heating load configuring in test unit, the final stable operation demand that meets test.
But in the time carrying out being tested by test-run a machine of different load size, consider from maximum energy-saving angle, to also requiring difference by the energy-conservation load of table cold loop, but existing control mode can only be carried out the load that control table cooling coil provides by the return water temperature in control table cold loop, and can not control intuitively the load that needs balance, so time also needed fixing certain refrigeration duty of opening by the wind side of test-run a machine, such as the supporting Condensing units of configuration and evaporation coil, finally carry out step-less adjustment and then realize by the control of test-run a machine wind side dry-bulb temperature by configuration electric heater again.In like manner, owing to taking uncertain by the load of test-run a machine water side by Surface cooling coil and can not all balance the refrigeration duty being produced by test-run a machine, regulate to meet the stable control of water side temperature therefore also needed opening electric heater to compensate by test-run a machine water side.
Therefore existing test unit energy-saving effect is not good, urgently improves.
Summary of the invention
The object of this invention is to provide a kind of air-to-water heat pump test unit with Surface cooling coil regulatory function, the wind side of this test unit is without dropping into extra cooling and heating load, therefore good energy-conserving effect, and experimentation cost is low.
For achieving the above object, the present invention has adopted following technical scheme: a kind of air-to-water heat pump test unit with Surface cooling coil regulatory function, comprise between the test of sealing, in between described test, be provided with by test-run a machine, be respectively arranged with the first air-treatment unit and the second air-treatment unit by the both sides of test-run a machine, describedly be connected with the constant temperature water tank that is arranged between test outside by pipeline by test-run a machine, the described both sides by test-run a machine are provided with condenser, and the return air place of two side condensers is respectively arranged with the first air themperature sampler and the second air themperature sampler, in described the first air-treatment unit, be provided with the first Surface cooling coil, in the second air-treatment unit, be provided with the second Surface cooling coil, described the first Surface cooling coil, the second Surface cooling coil are connected with described constant temperature water tank by variable frequency pump circulation line independently respectively, described constant temperature water tank is also connected with cooling tower systems.
This test unit can also be able to further realization in the following manner:
Described variable frequency pump circulation line comprises the first variable frequency pump circulation line and the second variable frequency pump circulation line; Described the first variable frequency pump circulation line comprises the flow pipe that is led to the first Surface cooling coil by constant temperature water tank, also comprise the return pipe that is led to constant temperature water tank by the first Surface cooling coil, on the described flow pipe that is led to the first Surface cooling coil by constant temperature water tank, be provided with the first Surface cooling coil variable frequency pump, and the frequency converter of the first Surface cooling coil variable frequency pump is electrically connected by signal wire with the first air themperature sampler; Described the second variable frequency pump circulation line comprises the flow pipe that is led to the second Surface cooling coil by constant temperature water tank, also comprise the return pipe that is led to constant temperature water tank by the second Surface cooling coil, on the described flow pipe that is led to the second Surface cooling coil by constant temperature water tank, be provided with the second Surface cooling coil variable frequency pump, and the frequency converter of the second Surface cooling coil variable frequency pump is electrically connected by signal wire with the second air themperature sampler.
Described cooling tower systems comprises cooling tower and heat radiation water pump, cooling tower systems also comprises by constant temperature water tank and leads to the feed pipe of cooling tower and led to the return pipe of constant temperature water tank by cooling tower, and described heat radiation water pump is arranged on by constant temperature water tank and leads on the feed pipe of cooling tower.
The output terminal of described the first air themperature sampler is electrically connected with the frequency converter of the first Surface cooling coil variable frequency pump by PID reconciliation statement; The output terminal of described the second air themperature sampler is electrically connected with the frequency converter of the second Surface cooling coil variable frequency pump by PID reconciliation statement.
Described heat radiation water pump is variable frequency pump, and the frequency converter of heat radiation water pump is electrically connected by signal wire with the temperature sensor being arranged in constant temperature water tank.
Temperature sensor in described constant temperature water tank is electrically connected with the frequency converter of heat radiation water pump by PID reconciliation statement.
In described the first air-treatment unit, be provided with the first evaporation coil, described the first evaporation coil is connected by pipeline with the first Condensing units that is arranged on outside between test; In described the second air-treatment unit, be provided with the second evaporation coil, described the second evaporation coil is connected by pipeline with the second Condensing units that is arranged on outside between test.
In described constant temperature water tank, be provided with electric heater.
Compared to the prior art the present invention has following beneficial effect:
1, the present invention has all configured independently Surface cooling coil in by the air-treatment unit of test-run a machine both sides, and has configured the variable frequency pump circulation line of adjustable load for Surface cooling coil; Described Surface cooling coil and variable frequency pump circulation line corresponding thereto form Surface cooling coil loop jointly; The present invention is simultaneously being provided with the first air themperature sampler and the second air themperature sampler of measuring return air dry-bulb temperature by the return air place of test-run a machine both sides condenser, described first and second air themperature sampler is electrically connected by signal wire with corresponding Surface cooling coil variable frequency pump respectively, and then two side condenser return air dry-bulb temperature can directly control corresponding Surface cooling coil variable frequency pump, to reach stable test effect, and without dropping into extra cooling and heating load.
2, in the present invention, in being all dispersed between test by the net quantity of heat of test-run a machine wind side, Surface cooling coil loop is delivered to Surface cooling coil place by the refrigeration duty of constant temperature water tank, in between test, distribute cold via air-treatment unit again, thereby the thermal equilibrium that makes to reach between test setting, said process has also all been taken to by the constant temperature water tank of test-run a machine water side by Surface cooling coil loop by the net quantity of heat of test-run a machine wind side.Due to energy conservation, now constant temperature water tank only needs to balance unnecessary heat, water temperature in constant temperature water tank is controlled by the heat radiation water pump in cooling tower systems, and the frequency converter of heat radiation water pump is electrically connected by signal wire with the temperature sensor being arranged in constant temperature water tank, therefore can reach the stable control of temperature in constant temperature water tank, and without dropping into extra electrical heating, thereby reach fully energy-conservation object.
Brief description of the drawings
Fig. 1 is the structural representation of this test unit.
In figure, the implication of mark is as follows:
10-test between 20-by test-run a machine 30A-the first air-treatment unit
30B-the second air-treatment unit the 31-the first Surface cooling coil
32-the second Surface cooling coil 33-the first evaporation coil the 34-the second evaporation coil
35-the first Condensing units the 36-the second Condensing units
40A-the first air themperature sampler 40B-the second air themperature sampler
50-constant temperature water tank, 51-electric heater, 60-cooling tower 70-heat radiation water pump
80A-the first Surface cooling coil variable frequency pump 80B-the second Surface cooling coil variable frequency pump
90-electric heater, 100-blower fan T101/T102-measuring point
PID-PID reconciliation statement Fre-frequency converter
Embodiment
As shown in Figure 1, a kind of air-to-water heat pump test unit with Surface cooling coil regulatory function, comprise between the test of sealing 10, between described test, be provided with by test-run a machine 20 in 10, be respectively arranged with the first air-treatment unit 30A and the second air-treatment unit 30B by the both sides of test-run a machine 20, describedly be connected with the constant temperature water tank 50 that is arranged on 10 outsides between test by pipeline by test-run a machine 20, the described both sides by test-run a machine 20 are provided with condenser, and the return air place of two side condensers is respectively arranged with the first air themperature sampler 40A and the second air themperature sampler 40B; In described the first air-treatment unit 30A, be provided with the first Surface cooling coil 31, in the second air-treatment unit 30B, be provided with the second Surface cooling coil 32, described the first Surface cooling coil 31, the second Surface cooling coil 32 are connected with described constant temperature water tank 50 by variable frequency pump circulation line independently respectively; Described constant temperature water tank 50 is also connected with cooling tower systems.
Arrow in Fig. 1 is the flow direction of pipeline medium.
Further, as shown in Figure 1, described variable frequency pump circulation line comprises the first variable frequency pump circulation line and the second variable frequency pump circulation line; Described the first variable frequency pump circulation line comprises the flow pipe that is led to the first Surface cooling coil 31 by constant temperature water tank 50, also comprise the return pipe that is led to constant temperature water tank 50 by the first Surface cooling coil 31, on the described flow pipe that is led to the first Surface cooling coil 31 by constant temperature water tank 50, be provided with the first Surface cooling coil variable frequency pump 80A, and the frequency converter of the first Surface cooling coil variable frequency pump 80A is electrically connected by signal wire with the first air themperature sampler 40A; Described the second variable frequency pump circulation line comprises the flow pipe that is led to the second Surface cooling coil 32 by constant temperature water tank 50, also comprise the return pipe that is led to constant temperature water tank 50 by the second Surface cooling coil 32, on the described flow pipe that is led to the second Surface cooling coil 32 by constant temperature water tank 50, be provided with the second Surface cooling coil variable frequency pump 80B, and the frequency converter of the second Surface cooling coil variable frequency pump 80B is electrically connected by signal wire with the second air themperature sampler 40B.
Preferably, as shown in Figure 1, the output terminal of described the first air themperature sampler 40A is electrically connected with the frequency converter of the first Surface cooling coil variable frequency pump 80A by PID reconciliation statement; The output terminal of described the second air themperature sampler 40B is electrically connected with the frequency converter of the second Surface cooling coil variable frequency pump 80B by PID reconciliation statement.
Further, described cooling tower systems comprises cooling tower 60 and heat radiation water pump 70, cooling tower systems also comprises by constant temperature water tank 50 and leads to the feed pipe of cooling tower 60 and led to the return pipe of constant temperature water tank 50 by cooling tower 60, and described heat radiation water pump 70 is arranged on by constant temperature water tank 50 and leads on the feed pipe of cooling tower 60.
Further, described heat radiation water pump 70 is variable frequency pump, and the frequency converter of heat radiation water pump 70 is electrically connected by signal wire with the temperature sensor being arranged in constant temperature water tank 50.
Preferably, as shown in Figure 1, the temperature sensor in described constant temperature water tank 50 is electrically connected with the frequency converter of heat radiation water pump 70 by PID reconciliation statement.
In described the first air-treatment unit 30A, be provided with the first evaporation coil 33, described the first evaporation coil 33 be arranged on first Condensing units 35 in 10 outsides between test and be connected by pipeline; In described the second air-treatment unit 30B, be provided with the second evaporation coil 34, described the second evaporation coil 34 be arranged on second Condensing units 36 in 10 outsides between test and be connected by pipeline.
In described constant temperature water tank 50, be provided with electric heater 51, to ensure in the time that cooling tower systems overhauls or breaks down, the operation that whole test unit still can be stable.
Under usual condition, the first evaporation coil 33, the second evaporation coil 34 and electric heater 90 in the first air-treatment unit 30A and the second air-treatment unit 30B all do not need work, electric heater 51 in constant temperature water tank 50 does not need work yet simultaneously, and therefore energy-saving effect of the present invention is very remarkable.
Claims (6)
1. one kind has the air-to-water heat pump test unit of Surface cooling coil regulatory function, comprise between the test of sealing (10), between described test, in (10), be provided with by test-run a machine (20), be respectively arranged with the first air-treatment unit (30A) and the second air-treatment unit (30B) by the both sides of test-run a machine (20), describedly be connected with the constant temperature water tank (50) that is arranged on (10) between test outside by pipeline by test-run a machine (20), it is characterized in that: the described both sides by test-run a machine (20) are provided with condenser, and the return air place of two side condensers is respectively arranged with the first air themperature sampler (40A) and the second air themperature sampler (40B), in described the first air-treatment unit (30A), be provided with the first Surface cooling coil (31), in the second air-treatment unit (30B), be provided with the second Surface cooling coil (32), described the first Surface cooling coil (31), the second Surface cooling coil (32) are connected with described constant temperature water tank (50) by variable frequency pump circulation line independently respectively, described constant temperature water tank (50) is also connected with cooling tower systems,
Described variable frequency pump circulation line comprises the first variable frequency pump circulation line and the second variable frequency pump circulation line; Described the first variable frequency pump circulation line comprises the flow pipe that leads to the first Surface cooling coil (31) by constant temperature water tank (50), also comprise the return pipe that leads to constant temperature water tank (50) by the first Surface cooling coil (31), on the described flow pipe that is led to the first Surface cooling coil (31) by constant temperature water tank (50), be provided with the first Surface cooling coil variable frequency pump (80A), and the frequency converter of the first Surface cooling coil variable frequency pump (80A) is electrically connected by signal wire with the first air themperature sampler (40A); Described the second variable frequency pump circulation line comprises the flow pipe that leads to the second Surface cooling coil (32) by constant temperature water tank (50), also comprise the return pipe that leads to constant temperature water tank (50) by the second Surface cooling coil (32), on the described flow pipe that is led to the second Surface cooling coil (32) by constant temperature water tank (50), be provided with the second Surface cooling coil variable frequency pump (80B), and the frequency converter of the second Surface cooling coil variable frequency pump (80B) is electrically connected by signal wire with the second air themperature sampler (40B);
The output terminal of described the first air themperature sampler (40A) is electrically connected with the frequency converter of the first Surface cooling coil variable frequency pump (80A) by PID reconciliation statement; The output terminal of described the second air themperature sampler (40B) is electrically connected with the frequency converter of the second Surface cooling coil variable frequency pump (80B) by PID reconciliation statement.
2. the air-to-water heat pump test unit with Surface cooling coil regulatory function according to claim 1, it is characterized in that: described cooling tower systems comprises cooling tower (60) and heat radiation water pump (70), cooling tower systems also comprises the return pipe that is led to the feed pipe of cooling tower (60) and led to constant temperature water tank (50) by cooling tower (60) by constant temperature water tank (50), and described heat radiation water pump (70) is arranged on by constant temperature water tank (50) and leads on the feed pipe of cooling tower (60).
3. the air-to-water heat pump test unit with Surface cooling coil regulatory function according to claim 2, it is characterized in that: described heat radiation water pump (70) is variable frequency pump, and the frequency converter of heat radiation water pump (70) is electrically connected by signal wire with the temperature sensor being arranged in constant temperature water tank (50).
4. the air-to-water heat pump test unit with Surface cooling coil regulatory function according to claim 3, is characterized in that: the temperature sensor in described constant temperature water tank (50) is electrically connected with the frequency converter of heat radiation water pump (70) by PID reconciliation statement.
5. according to the air-to-water heat pump test unit with Surface cooling coil regulatory function described in claim 1～4 any one, it is characterized in that: in described the first air-treatment unit (30A), be provided with the first evaporation coil (33), described the first evaporation coil (33) is connected by pipeline with the first Condensing units (35) that is arranged on (10) outside between test; In described the second air-treatment unit (30B), be provided with the second evaporation coil (34), described the second evaporation coil (34) is connected by pipeline with the second Condensing units (36) that is arranged on (10) outside between test.
6. according to the air-to-water heat pump test unit with Surface cooling coil regulatory function described in claim 1～4 any one, it is characterized in that: in described constant temperature water tank (50), be provided with electric heater (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210002633.7A CN102539191B (en) | 2012-01-06 | 2012-01-06 | Air-cooling cold (hot) water unit experiment device with surface-cooling coil pipe regulation function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210002633.7A CN102539191B (en) | 2012-01-06 | 2012-01-06 | Air-cooling cold (hot) water unit experiment device with surface-cooling coil pipe regulation function |
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| CN102539191A CN102539191A (en) | 2012-07-04 |
| CN102539191B true CN102539191B (en) | 2014-07-02 |
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| CN103103568B (en) * | 2013-01-31 | 2015-11-18 | 宝纳资源控股(集团)有限公司 | A kind of thermostatic control system of High Temperature Furnaces Heating Apparatus water power cable |
| CN103175706A (en) * | 2013-03-25 | 2013-06-26 | 上海理工大学 | Air cooled heating pump test system |
| CN115451609B (en) * | 2022-09-14 | 2023-09-22 | 合肥通用机械研究院有限公司 | Condensation heat recovery system and recovery method for refrigeration evaluation of water chilling unit |
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| JP2007085712A (en) * | 2005-09-16 | 2007-04-05 | Thc:Kk | Air conditioner |
| JP2007155195A (en) * | 2005-12-02 | 2007-06-21 | Nissui Engineering Co Ltd | Cooling facility |
| CN1793746A (en) * | 2005-12-31 | 2006-06-28 | 东莞市广大制冷有限公司 | Method for automatic regulating and controlling cooling water and frozen water flow of central air conditioning system |
| CN100578107C (en) * | 2007-01-30 | 2010-01-06 | 东莞市广大制冷有限公司 | Directly-heated system |
| CN102155766A (en) * | 2011-03-30 | 2011-08-17 | 浙江大学 | Constant-temperature and constant-humidity air conditioning system adopting variable-flow variable-water-temperature surface cooler |
| CN102269661B (en) * | 2011-07-01 | 2014-04-30 | 南京师范大学 | Testing system for performance of air-cooled compression condensing unit |
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Effective date of registration: 20150529 Address after: High tech Zone Hefei city Anhui province 230094 Xisi Road No. 9 (electromechanical Industrial Park) Patentee after: Hefei General Environment Control Technology Co., Ltd. Address before: 230031 Hefei Changjiang Road, Shushan District, Anhui, No. 888 Patentee before: Hefei Universal Machinery Inst. Patentee before: Hefei General Environment Control Technology Co., Ltd. |