CN214276002U - Central air conditioning system based on primary pump - Google Patents
Central air conditioning system based on primary pump Download PDFInfo
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- CN214276002U CN214276002U CN202022668480.2U CN202022668480U CN214276002U CN 214276002 U CN214276002 U CN 214276002U CN 202022668480 U CN202022668480 U CN 202022668480U CN 214276002 U CN214276002 U CN 214276002U
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Abstract
The utility model discloses a central air-conditioning system based on a primary pump, which comprises an energy supply mechanism, a load side, a primary pump and a circulating pump, wherein the energy supply mechanism is connected with the load side to form a circulating loop; the primary pump is located the load side with between the energy supply mechanism, the one end of circulating pump connect in between energy supply mechanism and the load side, the other end connect in the load side with between the first-stage pump. The utility model discloses a set up the circulating pump between energy supply mechanism and load side, the cold volume cooling that exists in the aquatic of utilizing certain capacity among the air conditioning water system reduces air conditioning water system's bypass flow under the low-load condition, reduces the water resistance loss of host computer after the host computer shut down, has improved energy supply mechanism's operation security.
Description
Technical Field
The utility model relates to an air conditioning technology field, in particular to central air conditioning system based on primary pump.
Background
The cold energy produced by the cold source equipment is conveyed to the air treatment equipment through a pipeline system, and a system for conveying cold water is an air-conditioning water system, wherein the air-conditioning water system can be divided into a primary pump system, a secondary pump system and a multistage pump system. The commonly used primary pump system at present is easy to generate surging under the condition of low load, and surging can bring damage to cold source equipment and influence the service life of the cold source equipment.
Disclosure of Invention
The to-be-solved technical problem of the utility model lies in, to prior art's not enough, provide a central air conditioning system based on one-level pump.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows:
a central air-conditioning system based on a primary pump comprises an energy supply mechanism, a load side, the primary pump and a circulating pump, wherein the energy supply mechanism is connected with the load side to form a circulating loop; the primary pump is located the load side with between the energy supply mechanism, the one end of circulating pump connect in between energy supply mechanism and the load side, the other end connect in the load side with between the first-stage pump.
The central air-conditioning system based on the primary pump comprises a water segregator and a water collector; the water separator is located between the energy supply mechanism and the water inlet of the load side, and the water collector is located between the water outlet of the load side and the primary pump.
The central air-conditioning system based on the primary pump is characterized in that one end of the circulating pump is connected with the water separator, and the other end of the circulating pump is connected with the water collector.
The central air-conditioning system based on the primary pump comprises a bypass valve, and the bypass valve is connected between the water separator and the water collector.
The central air-conditioning system based on the primary pump is characterized in that the energy supply mechanism comprises an evaporator and a condenser, and the condenser is connected with the evaporator to form a heat exchange loop; the water outlet of the evaporator is connected with the load side, and the water inlet of the evaporator is connected with the primary pump.
The central air-conditioning system based on the primary pump is characterized in that the central air-conditioning water system comprises a water supply mechanism, and the water supply mechanism is connected with the primary pump.
The central air-conditioning system based on the primary pump is characterized in that the refrigerating mechanism is connected with the condenser to provide a cold source for the condenser.
Has the advantages that: compared with the prior art, the utility model provides a central air conditioning system based on a primary pump, which comprises an energy supply mechanism, a load side, a primary pump and a circulating pump, wherein the energy supply mechanism is connected with the load side to form a circulating loop; the primary pump is located the load side with between the energy supply mechanism, the one end of circulating pump connect in between energy supply mechanism and the load side, the other end connect in the load side with between the first-stage pump. The utility model discloses a set up the circulating pump between energy supply mechanism and load side, the cold volume cooling that exists in the aquatic of utilizing certain capacity among the air conditioning water system reduces air conditioning water system's bypass flow under the low-load condition, reduces the water resistance loss of host computer after the host computer shut down, has improved energy supply mechanism's operation security.
Drawings
Fig. 1 is an exemplary diagram of a central air conditioning water system based on a primary pump according to the present invention.
Detailed Description
The utility model provides a central air conditioning system based on one-level pump, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It should be further noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc., indicating directions or positional relationships based on those shown in the drawings, it is only for convenience of description and simplicity of description, but not for indicating or implying that the indicated device or element must have a specific direction, be constructed in a specific direction, and operate, and therefore, the terms describing the positional relationships in the drawings are used only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the above terms according to specific situations.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The following description of the embodiments will further explain the present invention by referring to the figures.
This embodiment provides a central air conditioning water system based on primary pump, as shown in fig. 1, central air conditioning water system includes energy supply mechanism 1, load side 2, primary pump 3 and circulating pump 4, energy supply mechanism 1's delivery port with the water inlet of load side 2 is connected, load side 2's delivery port with energy supply mechanism 1's water inlet is connected in order to form the water supply return circuit. The delivery port of load side 2 with arrange between the water inlet of energy supply mechanism 1 primary pump 3, circulating pump 4 one end connect in between energy supply mechanism 1 and load side 2, the other end connect in load side 2 with between the primary pump 3. The utility model discloses a set up the circulating pump between energy supply mechanism and load side 2, the cold volume cooling that exists in the aquatic of utilizing certain capacity among the air conditioning water system reduces air conditioning water system's bypass flow under the low-load condition, reduces the water resistance loss of host computer after the host computer shut down, has improved energy supply mechanism's operation security. Meanwhile, the circulating pump 4 supplies cold by using cold energy existing in water with certain volume in the air-conditioning water system, so that the refrigeration main machine can be prevented from running at low efficiency, the running energy consumption of the main machine is saved, the flow redundancy and the lift redundancy of the primary pump when the primary pump runs under the condition of low load are avoided, and the conveying energy consumption is saved.
Further, circulating pump 4 with energy supply mechanism 1 forms the cooling return circuit, circulating pump 4 can transmit the backward flow water that the delivery port of energy supply mechanism 1 flows to the water inlet of energy supply mechanism 1, utilizes the cold volume cooling that exists in the aquatic of certain capacity among the air conditioning water system to load side 2 cooling, avoids the flow redundancy and the lift redundancy of one-level pump when the underload condition moves, sparingly carries the energy consumption. Circulating pump 4 through first connecting pipe connect in between energy supply mechanism 1 and load side 2, circulating pump 4 through the second connecting pipe connect in between energy supply mechanism 1 and load side 2, can be provided with control valve and manometer etc. on the first connecting pipe, when the circulating pump was closed like this, can avoid flowing to the water source of load side 2 and the backward flow water that the delivery port of load side 2 flowed out and get into circulating pump 4, improved circulating pump 4's security.
Further, when the circulation pump 4 has a cold storage amount in the air-conditioning water system and the power supply mechanism stops working, the circulation pump is started to form a water supply loop between the circulation pump and the load side 2, and the return water of the load side 2 is transmitted to the water inlet of the load side 2 through the circulation pump, so that the cold storage amount in the air-conditioning water system provides a cold source for the load side 2. Therefore, a temperature detection device is arranged at the water outlet of the load side 2, the temperature of the water outlet is detected through the temperature detection device, and the circulating pump 4 is started if the temperature detected by the temperature detection device is lower than the return water temperature when the energy supply mechanism stops working. This is because the water capacity of the air-conditioning water system is cyclically operated at a supply water temperature (e.g., 7 ℃ or the like) and a return water temperature (e.g., 12 ℃ or the like) with a supply and return water temperature difference (e.g., 5 ℃ or the like), and when the return water temperature is lower than the set temperature of the system energy supply mechanism 1, the energy supply mechanism stops operating; at this time, the water temperature in the air-conditioning water systems is lower than the return water temperature (for example, 12 ℃), and then the water in the air-conditioning water systems is judged to have a certain cold storage amount.
In an implementation manner of this embodiment, the working process of the circulation pump 4 may be: when the central air-conditioning water system is in low-load operation, namely the temperature of return water at the water outlet of the load side 2 is lower than the return water temperature, the primary pump 3 and the energy supply mechanism 1 are closed, and the circulating pump 4 is started, so that the return water flowing through the water outlet of the load side 2 flows into the load side 2 through the circulating pump 4, and the return water provides energy for the load side 2. In addition, when the primary pump 3 and energy supply mechanism 1 stops, detect the delivery port temperature of load side 2, when the delivery port of load side 2 satisfies the preset condition, start the primary pump 3 and energy supply mechanism 1 to close circulating pump 4, in order to pass through energy supply mechanism 1 provides the ability for load side 2. The preset condition is that the temperature of the water outlet of the load side 2 is greater than a preset temperature threshold, wherein the preset temperature threshold is greater than or equal to the recovery temperature, for example, the backwater temperature is 12 ℃ and the preset temperature threshold is 16 ℃.
Further, in one implementation manner of the present embodiment, the energy supply mechanism 1 includes an evaporator 11 and a condenser 12, and the condenser 12 is connected with the evaporator 11 to form a heat exchange loop; the water outlet of the evaporator 11 is connected with the load side 2, and the water inlet of the evaporator 11 is connected with the primary pump 3. In addition, the cold supply mechanism may further include a cold source end, and a circulation loop is formed between the cold source end and the condenser 12 to provide a cold source for the condenser 12.
In addition, in practical application, in order to avoid the water source in the central air-conditioning water system from being reduced due to evaporation, the central air-conditioning water system further comprises a water supply mechanism 8, the water supply mechanism 8 is connected with the primary pump 3, and the supplementing water in the water supply mechanism 8 and the return water on the load side 2 are transmitted to the energy supply mechanism 1 through the primary pump 3 so as to ensure that the return water amount flowing into the energy supply mechanism 1 is unchanged.
Further, in one implementation of the present embodiment, the central air-conditioning water system includes a water separator 5 and a water collector 6; the water knockout drum 5 is located energy supply mechanism 1 with between the water inlet of load side 2, that is to say, energy supply mechanism 1's delivery port with the water knockout drum 5 is connected, load side 2's water inlet with the water knockout drum 5 is connected, and energy supply mechanism 1 flows out medium water and transmits to load side 2 through water knockout drum 5. The water collector 6 is located between the primary pump 3 and the water outlet of the load side 2, that is, the water outlet of the load side 2 is connected to the water collector 6, and the water collector 6 is connected to the primary pump 3.
Further, in one implementation of the present embodiment, the central air-conditioning water system includes a bypass valve 7, and the bypass valve 7 is connected between the water separator 5 and the water collector 6. It will be appreciated that the bypass valve 7 is connected at one end to the water separator 5 and at the other end to the water collector 6, so that the bypass valve 7 can adjust to variations in the water supply of the user on the load side 2. This is because the load side 2 requires variable flow operation of the air conditioning water system from the end air conditioning equipment use requirement; in view of the characteristics of the energy supply means 1 (e.g., a cooling unit, etc.), the flow rate of water passing through the energy supply means 1 (e.g., an evaporator, etc.) is required to be constant. For this purpose, a bypass valve 7 is arranged between the water separator 5 and the water collector 6. Furthermore, the working principle of the bypass valve 7 may be: when the energy supply mechanism 1 runs at full load, no bypass water quantity exists, the opening degree of the bypass valve 7 is zero, and the pressure difference between the water separator 5 and the water collector 6 is a control set value; when the load on the load side 2 is reduced, the two-way regulating valve on the load side 2 is closed to be small, the pressure difference between the water separator 5 and the water collector 6 can be increased and exceed a set value, in addition, the bypass valve 7 is opened, part of water enters the water collector 6 through the bypass valve 7, and the pressure difference between the water separator 5 and the water collector 6 is reduced to the set value for controlling, and then the water stops being continuously opened. In addition, the bypass water is mixed with the load side 2 return water and then enters the energy supply mechanism 1, and the amount of water entering the energy supply mechanism 1 is kept unchanged.
In summary, the present embodiment provides a central air conditioning system based on a primary pump, the central air conditioning system includes an energy supply mechanism, a load side, the primary pump and a circulation pump, the energy supply mechanism is connected to the load side to form a circulation loop; the primary pump is located the load side with between the energy supply mechanism, the one end of circulating pump connect in between energy supply mechanism and the load side, the other end connect in the load side with between the first-stage pump. The utility model discloses a set up the circulating pump between energy supply mechanism and load side, the cold volume cooling that exists in the aquatic of utilizing certain capacity among the air conditioning water system reduces air conditioning water system's bypass flow under the low-load condition, reduces the water resistance loss of host computer after the host computer shut down, has improved energy supply mechanism's operation security.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. A central air-conditioning system based on a primary pump is characterized by comprising an energy supply mechanism, a load side, the primary pump and a circulating pump, wherein the energy supply mechanism is connected with the load side to form a circulating loop; the primary pump is located the load side with between the energy supply mechanism, the one end of circulating pump connect in between energy supply mechanism and the load side, the other end connect in the load side with between the primary pump.
2. The primary pump-based central air conditioning system of claim 1, wherein the central air conditioning water system comprises a water knockout trap and a water collector; the water separator is located between the energy supply mechanism and the water inlet of the load side, and the water collector is located between the water outlet of the load side and the primary pump.
3. The primary pump-based central air-conditioning system as recited in claim 2 wherein the circulation pump is connected to the water separator at one end and to the water collector at the other end.
4. The primary pump-based central air conditioning system of claim 2, wherein the central air conditioning water system includes a bypass valve connected between the water knockout vessel and the water collection vessel.
5. The primary pump-based central air conditioning system of claim 1, wherein the energy supply mechanism comprises an evaporator and a condenser, the condenser being connected to the evaporator to form a heat exchange circuit; the water outlet of the evaporator is connected with the load side, and the water inlet of the evaporator is connected with the primary pump.
6. The primary pump-based central air conditioning system of claim 5, further comprising a refrigeration mechanism coupled to the condenser to provide a cold source to the condenser.
7. The primary pump-based central air conditioning system of claim 1, wherein the central air conditioning water system includes a water supply mechanism, the water supply mechanism being connected to the primary pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022668480.2U CN214276002U (en) | 2020-11-17 | 2020-11-17 | Central air conditioning system based on primary pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022668480.2U CN214276002U (en) | 2020-11-17 | 2020-11-17 | Central air conditioning system based on primary pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214276002U true CN214276002U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022668480.2U Active CN214276002U (en) | 2020-11-17 | 2020-11-17 | Central air conditioning system based on primary pump |
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| Country | Link |
|---|---|
| CN (1) | CN214276002U (en) |
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- 2020-11-17 CN CN202022668480.2U patent/CN214276002U/en active Active
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