CN104197455A - A uniform flow device in a water cold storage system - Google Patents

Abstract

The invention provides a flow equalizing device in a chilled water storage system, and belongs to the field of energy storage. This even among flow device water cold-storage system includes the cold-storage pond, even flow device includes the shell, the upper end of shell communicates with each other for the opening and with the bottom in cold-storage pond, the water passage board that has in the shell is first, the sponge has on the water passage board, water passage board below has the pipe of buckling that is "z" font, the one end port department of the pipe of buckling has linked firmly water passage board one, the other end port of the pipe of buckling has linked firmly water passage board two, the pipe both ends of buckling are the on-state with the shell inner chamber, the one end port that the pipe of buckling is connected with water passage board two is the closed end, the last limbers that has of closed end, the pipe of buckling that is "z" font is by direct current portion one, kink and direct current portion two are constituteed, the both ends of kink communicate with each other and link firmly with the tip of direct current portion one and direct current portion two, direct current portion one forms the contained angle that is less. The uniform flow device has good water outlet effect and can not cause the change of the thermocline.

Description

A uniform flow device in a water cold storage system

technical field

The invention belongs to the field of energy storage, and relates to a uniform flow device in a water cold storage system.

Background technique

Water storage technology uses the difference in peak and valley electricity prices to store cooling capacity in water during low electricity price periods, and use stored low-temperature frozen water to provide cooling for air conditioners during peak hours of electricity consumption during the day. When the use time of the air conditioner is synchronized with the use time of the non-air conditioner and the peak and trough of the power grid, the power consumption of the air conditioner in the peak time of the power grid can be transferred to the trough of the power grid to save electricity. The most mature and effective cold storage method currently used is natural stratification.

Natural stratification is temperature stratification. Temperature stratified water storage uses the physical property of water with different densities at different temperatures, and relies on the density difference to keep warm water and cold water separated to avoid cooling loss caused by mixing cold water and warm water.

Water has the highest density at around 4°C, and the density gradually decreases with the increase of water temperature. Using this physical characteristic of water, the water with low temperature is stored in the lower part of the pool, and the water with high temperature is stored in the upper part of the pool. . A well-designed temperature stratified water storage tank forms a heat and mass exchange layer between the upper warm water zone and the lower cold water zone. A stable heat and mass exchange layer with small thickness is the key to improve the efficiency of cold storage.

In order to make the water flow in the vertical cross-section of the cold storage pool smoothly through the gravity flow or plug flow on the entire cross-section and smoothly lead into the pool (or lead out from the pool), between the upper warm water area and the lower cold water area To form and maintain an effective heat and mass exchange layer with a thickness as small as possible, the key is to set up the same diffusers in the upper and lower parts of the cold storage tank to ensure that the water flow meets the Frande coefficient when entering the cold storage tank, so that the water flow is uniform Distributed with minimal disturbance into the cold storage tank. The design and construction of water diffuser is the key technology of temperature stratified water storage, which is usually called the water distribution technology of water storage.

Water distribution technology is also called uniform flow technology. When it is necessary to extract cold water from the cold storage tank for pipeline circulation, the water pump is used to extract it. The effect slows down the flow rate, but the problem is that the excessive suction of the water pump causes the sponge to sag, and the effect of slowing down the flow rate of the sponge is not enough. Large, the loss of cooling capacity is exacerbated.

Contents of the invention

The object of the present invention is to solve the above-mentioned problems in the prior art, and provide a uniform flow device in the water storage system. The uniform flow device in the water storage system has good water discharge effect, ingenious structural design, and will not cause inclined temperature. Layer change, which solves the problem of uneven distribution of water flow from the uniform flow device in the existing water storage system, excessive flow velocity, which will greatly disturb the inclined temperature layer and cause cooling capacity loss.

The purpose of the present invention can be achieved through the following technical proposals: a flow equalization device in a water cold storage system, the water cold storage system includes a cold storage pool, characterized in that: the flow equalization device includes a cylindrical shell, the The upper end of the shell is open and communicates with the bottom of the cold storage pool. There is a circular water-passing plate 1 inside the shell, and the water-passing plate 1 is fixed on the inner wall of the shell. There is a sponge on the first plate, and the inner diameter of the sponge and the shell is matched with each other. There are several bent tubes in the shape of "Z" under the water plate one, and one end port of the bent tubes is fixedly connected There is the first water-passing plate, and the other end port of the bent pipe is fixedly connected with a circular water-passing plate 2, and the second water-passing plate is fixedly connected to the inner wall of the shell, and the bent pipe The ports at both ends of the tube are connected to the inner cavity of the shell, and the port at one end of the bent tube connected to the water plate is a closed port, and there are several water holes on the closed port. The "z"-shaped bending tube is composed of a direct current part one, a bending part and a direct current part two. The first direct-flow part is connected to the first water-passing plate, the first direct-flow part and the bent part form an included angle less than or equal to 90 degrees, and the water storage chamber is between the second water-passage plate and the bottom wall of the shell, A water outlet pipe is connected to the outer wall of the water storage cavity.

This flow equalizer is used as an auxiliary water outlet device for cold water storage. Its function is to prevent the water pump from being directly connected to the cold storage tank to pump water to cause confusion in the thermoclinic layer in the cold storage tank. The cold water in the cold storage tank penetrates into the sponge, and the water in the cold storage tank Evenly adsorbed, and then enter the port of the straight section one into the bent tube, decelerate at the angle between the straight section one and the bent part, the water flow continuously enters the bent tube, and the water flow at the bent part gradually moves through the direct current Part 2 falls. During this process, the water from the cold storage pool is slowly discharged without disturbing the thermocline. The water flows into the water storage chamber through the water hole of the closed port. The design of the closed port reduces the flow of water into the water storage chamber, further enabling The cold water is discharged slowly, and the water in the water storage chamber is used for cooling through the water outlet pipe. The angle between the straight part and the bending part is less than or equal to 90 degrees. This structure makes the water flow receive resistance at the junction of the straight part and the bending part, so that the water flow slows down, and the water in the cold storage tank is continuously filled with bending parts. It is only at the bottom that the water flow begins to fall, which greatly reduces the flow rate of the water flow.

In the above-mentioned uniform flow device in a water cold storage system, the angle between the straight-flow part one and the bending part is 90 degrees.

It has been found through practice that an included angle of 90 degrees is sufficient to maintain the stability of the thermocline.

In the above-mentioned uniform flow device in a water cold storage system, the upper end port of the casing has an annular baffle extending toward the center of the casing, and the sponge is located between the annular baffle and the water-passing plate one .

The function of the annular retaining edge is to fix the sponge and enhance the stability of the sponge.

In the above-mentioned uniform flow device in a water cold storage system, the first water-passing plate is concave, and the lower end of the sponge is also concave.

This structure increases the absorption area of the sponge and increases the flow rate of the water flow.

In the above-mentioned uniform flow device in a water cold storage system, a cylindrical rubber layer is provided on the bottom wall of the housing.

When the water storage chamber is hollow, noise is likely to occur when the water falls, and this problem is solved by the rubber layer.

Compared with the prior art, the uniform flow device in the water storage system has the following advantages:

1. The uniform flow device in the water storage system passes through the action of the sponge and the bending tube, so that the water outflow from the cold storage tank is slow, without disturbing the thermoclinic layer, and the water storage cavity is used as the direct action of the refrigeration cycle system. The structure design is ingenious.

1. The bent tube of the uniform flow device in the water cold storage system is composed of the first direct current part, the bent part and the second direct current part. The first direct current part and the bent part form an included angle less than or equal to 90 degrees. The included angle of the bending part decelerates, and the water flow continuously enters the bending pipe. The water flow at the bending part gradually moves through the straight-line part 2 and falls.

1. One end port of the bending pipe of the uniform flow device in the water cold storage system is a closed port, and there are several water holes on the closed port. The design of the closed port reduces the flow of water entering the water storage chamber, and further makes the water out of the cold storage tank slow.

1. There is a cylindrical rubber layer on the bottom wall of the shell of the uniform flow device in the water cold storage system. When the water storage chamber is hollow, noise is likely to occur when the water falls, and this problem is solved by the rubber layer.

Description of drawings

Fig. 1 is a perspective view of the overall structure of the uniform flow device in the water cold storage system (with the sponge removed).

Fig. 2 is a perspective view of the overall structure of the uniform flow device in the water cold storage system.

Fig. 3 is a schematic diagram of the structure of the bent tube of the uniform flow device in the water cold storage system.

In the figure, 1, shell; 1a, water storage cavity; 1b, annular retaining edge; 2, water-through plate 1; 3, sponge; 4, bent pipe; 4a, closed mouth; 4a1, water hole; 4b, direct current Part 1; 4c, bending part; 4d, direct current part 2; 5, water-passing plate 2; 6, outlet pipe; 7, rubber layer.

Detailed ways

As shown in Fig. 1 to Fig. 3, the water cold storage system in the uniform flow device in the water cold storage system includes a cold storage tank, and the even flow device includes a cylindrical shell 1, the upper end of the shell 1 is open and connected to the bottom of the cold storage pool In the same way, there is a circular water-passing plate-2 inside the shell 1, and the water-passing plate-2 is fixedly connected to the inner wall of the shell 1. There is a sponge 3 on the water-passing plate-2, and the inner diameter of the sponge 3 and the shell 1 are matched. There are several bent tubes 4 in the shape of "Z" under the water plate-2, the water plate-2 is fixedly connected to the port at one end of the bent tube 4, and the port at the other end of the bent tube 4 is fixedly connected to a The circular water-passing plate 2 5 is fixedly connected to the inner wall of the shell 1, the ports at both ends of the bent tube 4 are in a conduction state with the inner cavity of the shell 1, and the bent tube 4 and the water-passing plate One end port connected by two 5 is a closed port 4a, and there are several water holes 4a1 on the closed port 4a, and the bent pipe 4 in the shape of a "z" is composed of a direct-current part 4b, a bent part 4c and a direct-current part 2 4d, The two ends of the bent part 4c communicate with and are fixedly connected to the ends of the first direct current part 4b and the second direct current part 4d, the first direct current part 4b is connected to the water flow plate one 2, and the first direct current part 4b and the bent part 4c form a shape less than or equal to 90 The included angle of degree, the water storage chamber 1a is formed between the water passage plate 2 5 and the bottom wall of the shell 1, and the water outlet pipe 6 is connected on the outer wall of the water storage chamber 1a.

As a water outlet auxiliary device for cold water storage, the uniform flow device is used to prevent the water pump from being directly connected to the cold storage tank to pump water to cause confusion in the inclined temperature layer in the cold storage tank. The reclaimed water is evenly absorbed, and then enters the port of the straight-flow part-4b into the bent tube 4, and decelerates at the angle between the straight-flow part-4b and the bent part 4c, and the water flow continuously enters the bent tube 4, and the bent part The water flow at 4c gradually moves through the direct-flow part 2 4d and falls. During this process, the water outflow from the cold storage tank is slow without disturbing the thermocline layer. The water flow flows into the water storage chamber 1a through the water hole 4a1 of the closed port 4a, and the closed port 4a The design reduces the flow of water entering the water storage chamber 1a, further slowing down the water outlet from the cold storage tank, and the water in the water storage chamber 1a is used for cooling through the water outlet pipe 6. The straight part 4b and the bent part 4c form an included angle less than or equal to 90 degrees. This structure makes the water flow receive resistance at the junction of the straight part 4b and the bent part 4c, so that the water flow is slowed down, and the water in the cold storage tank is continuously The water flow starts to fall only after the bent portion 4c is filled, which greatly reduces the flow velocity of the water flow.

As shown in FIG. 3 , the included angle between the straight portion 1 4b and the bent portion 4c is 90 degrees. It has been found through practice that an included angle of 90 degrees is sufficient to maintain the stability of the thermocline.

As shown in FIG. 1 and FIG. 2 , the upper port of the casing 1 has an annular baffle 1 b extending toward the center of the casing 1 , and the sponge 3 is located between the annular baffle 1 b and the water-passing plate 1 . The function of the annular retaining edge 1b is to fix the sponge 3 and enhance the stability of the sponge 3 .

As shown in Figure 1, the water flow plate-2 is in a concave shape, and the lower end of the sponge 3 is also in a concave shape. This structure increases the absorption area of the sponge 3 and increases the flow rate of the water flow.

As shown in FIG. 1 and FIG. 2 , there is a cylindrical rubber layer 7 on the bottom wall of the housing 1 . When the water storage chamber 1a is hollow, noise is likely to occur when the water falls, and this problem is solved by the rubber layer 7 .

The uniform flow device in the water cold storage system has good water outlet effect and ingenious structural design. Through the action of the sponge 3 and the bent pipe 4, the change of the inclined temperature layer in the cold storage tank will not be caused.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Claims (5)

1. the flow-harmonization device in a chilled water storage system, described chilled water storage system comprises cold accumulating pond, it is characterized in that: described flow-harmonization device comprises cylindrical circular shell, the upper end of described shell is opening and communicates with the bottom of described cold accumulating pond, in described shell, there is rounded water board one, described water board one is connected on the inwall of described shell, on described water board one, there is sponge, described sponge mates mutually with the internal diameter of described shell, the below of described water board one has some and is the bending tube of " z " font, the port, one end of described bending tube is fixed with described water board one, the other end port of described bending tube is fixed with rounded water board two, described water board two is connected on the inwall of described shell, two ends port and the described shell inner cavity of described bending tube are conducting state, one end port that described bending tube is connected with described water board two is close mouth, in described close mouth, there is several limbers, described being " z " font bending tube by direct current portion one, kink and direct current portion two form, the two ends of described kink communicate and are connected with the end of described direct current portion one and direct current portion two, described direct current portion one is connected in described water board one, described direct current portion one and described kink form the angle that is less than or equal to 90 degree, between described water board two and described outer shell bottom wall, it is storage chamber, on described storage chamber outer wall, be connected with outlet pipe.

2. the flow-harmonization device in a kind of chilled water storage system according to claim 1, is characterized in that, the angle of described direct current portion one and described kink is 90 degree.

3. the flow-harmonization device in a kind of chilled water storage system according to claim 1 and 2, is characterized in that, the upper end port of described shell has the annular gear edge of extending to described shell center, and described sponge is between described annular gear edge and described water board one.

4. the flow-harmonization device in a kind of chilled water storage system according to claim 1 and 2, is characterized in that, described water board one is in a concave shape, and the lower end of described sponge is in a concave shape equally.

5. the flow-harmonization device in a kind of chilled water storage system according to claim 1 and 2, is characterized in that, has the cylindrical rubber layer of one deck in described outer shell bottom wall.