CN204165287U - Four backhaul condensers - Google Patents

Abstract

The utility model relates to the technical field of condensers, in particular to a four-pass condenser with high heat exchange efficiency. It is equipped with a first split partition perpendicular to its end face in the right head, and a second split partition parallel to the extension surface and a second split partition parallel to the extension surface are respectively provided on both sides of the extension surface of the first split partition in the left head. The third divider. The inner cavity of the cylinder is divided into upper and lower parts, each part is provided with at least one semicircular support plate perpendicular to the axis, and the upper support plate and the lower support plate are arranged alternately. The utility model divides the cooling water into four processes, so that the cooling water and the refrigerant are in contact with each other for sufficient heat exchange; at the same time, the baffles are divided into two pieces, which are arranged in a staggered manner, so that the refrigerant circulates in a circuitous manner and increases the heat transfer area. The utility model adopts two measures at the same time, which can effectively improve the heat exchange efficiency and ensure the condensation effect of the condenser.

Description

Four-pass condenser

technical field

The utility model relates to the technical field of condensers, in particular to a four-pass condenser with high heat exchange efficiency.

Background technique

Shell-and-tube condensers are commonly used equipment in the fields of chemical industry, metallurgy, and pharmaceuticals, and their heat exchange efficiency directly affects industrial production costs and energy utilization efficiency. In the existing shell-and-tube condenser, the cooling water is generally divided into single return and double return, and the flow of cooling water is less, resulting in low heat exchange efficiency of the condenser. In addition, in order to change the flow direction of the refrigerant, there are generally baffles in the cylinder, but the existing baffles are all plates with the same shape as the end surface of the cylinder. This kind of baffle makes the flow direction of the refrigerant relatively single. Further affect the heat transfer efficiency.

Contents of the invention

In order to solve the above problems, the utility model improves the baffle plate and the partition plate of the condenser, and provides a four-pass condenser, which can have higher heat exchange efficiency.

The concrete technical scheme that the utility model adopts is:

A four-pass condenser, including a cylinder and the heads at both ends, the right side head is provided with a first split-pass partition perpendicular to its end face, the left side head is on both sides of the extension surface of the first split-pass partition A second split-pass partition and a third split-pass partition parallel to the extension surface are provided respectively, a cooling water inlet is provided on the head wall above the second split-pass partition, and a cooling water inlet is provided on the head wall below the third split-pass partition. There is a cooling water outlet on the wall of the head; a tube plate with a number of holes is provided at each end of the cylinder, and the inner cavity is divided into upper and lower parts by a plane passing through the axis, and each part is provided with at least one Vertical semicircular support plate, the upper support plate and the lower support plate are arranged alternately, and each support plate is provided with support holes corresponding to the hole positions on the tube plate, and the holes and support holes corresponding to each group of positions A heat exchange tube runs through the cylinder axially. The cooling water circulation circuit can be divided into four processes through the three partitions arranged at intervals in the two ends of the head, increasing the contact time between the cooling water and the refrigerant, and improving the heat exchange efficiency. At the same time, the baffle is divided into two semicircular support plates arranged alternately, so that the refrigerant circulates in the cylinder in a circuitous manner, which increases the heat transfer area and further improves the heat transfer efficiency.

Preferably, the first division partition is located on a plane that passes through the diameter of the end face of the head and is perpendicular to the end face, and the second division partition and the third division partition extend from the first division partition The distance between the surfaces is equal, so that the heat exchange tubes of each process are basically evenly distributed.

Preferably, both ends of the heat exchange tubes are sealed and connected to the tube sheet by welding.

Preferably, the heat exchange tubes are copper tubes.

Further, the top of the cylinder is provided with a gas phase inlet and a gas phase outlet, and the bottom is provided with a liquid discharge port. Refrigerant vapor enters from the gas phase inlet, contacts the heat exchange tube in the cylinder, condenses into liquid when the temperature drops, and is discharged from the liquid discharge port, and the uncondensed refrigerant vapor is discharged from the gas phase outlet.

Further, the bottom of the left head is provided with a cooling water drain port, and the top and bottom of the right head are respectively provided with a cooling water drain port, which is convenient for emptying the cooling water in the condenser when it is not in use. Prevent the heat exchange tube from expanding and cracking.

The utility model divides the cooling water into four processes, so that the cooling water and the refrigerant are in contact with each other for sufficient heat exchange; at the same time, the baffles are divided into two pieces, which are arranged in a staggered manner, so that the refrigerant circulates circuitously and increases the heat exchange area. The utility model adopts two measures at the same time, which can effectively improve the heat exchange efficiency and ensure the condensation effect of the condenser.

Description of drawings

Fig. 1 is the front sectional view of the utility model;

Fig. 2 is the K direction view of Fig. 1;

Figure 3 is a schematic diagram of the hole layout of the tube sheet;

Fig. 4 is the schematic diagram of cylinder upper support plate;

Fig. 5 is the schematic diagram of cylinder lower support plate;

In the figure, 1. Cooling water inlet, 2. Left head, 3. Second split plate, 4. Tube sheet, 5. Gas phase outlet, 6. Cylinder, 7. Heat exchange tube, 8. Support plate , 9. Gas phase inlet, 10. Cooling water discharge port, 11. Right side head, 12. First split partition, 13. Drain port, 14. Third split partition, 15. Cooling water outlet , 16, holes, 17, support holes.

Detailed ways

A four-pass condenser, as shown in the figure, includes a cylinder 6, and the two ends of the cylinder 6 are connected with a left head 2 and a right head 11 through flanges. The right side head 11 is provided with a first division partition 12 on a plane passing through the diameter of the end face of the head and perpendicular to the end face, and the left side head 2 is respectively provided with extension surfaces on both sides of the extension surface of the first division partition. Parallel to the second dividing plate 3 and the third dividing plate 14, the distance between the second dividing plate 3 and the third dividing plate 14 and the extension surface is equal. A cooling water inlet 1 is provided on the head wall above the second split-pass partition, a cooling water outlet 15 is provided on the head wall below the third split-pass partition, and a cooling water outlet 15 is provided on the head wall next to the cooling water outlet. There is a cooling water discharge port 10, and a cooling water discharge port 10 is respectively provided on the top and bottom of the head on both sides of the first divider. A tube plate 4 with several holes 16 is provided at both ends of the cylinder 6, and its inner cavity is divided into upper and lower parts by the extension surface of the first dividing plate. The upper part is equidistantly provided with three semicircles perpendicular to the axis. shaped support plate 8, the lower part is equidistantly provided with four semicircular support plates 8 perpendicular to the axis, the upper support plate and the lower support plate are arranged alternately, and each support plate 8 is provided with the hole on the tube plate 4 16 The support holes 17 corresponding to the positions, each group of corresponding holes and the support holes penetrate a heat exchange tube 7 along the axial direction of the cylinder. copper pipe. A gas phase inlet 9 is provided on the right side of the top of the cylinder 6, and a gas phase outlet 5 is provided on the left side as a refrigerant inlet and outlet, and a liquid discharge port 13 is provided on the left side of the bottom of the cylinder as a refrigerant liquid discharge port.

The circulation process of cooling water and refrigerant in the utility model is as follows:

Cooling water enters the cavity surrounded by the second splitter plate and the left head wall from the cooling water inlet, enters the corresponding heat exchange tube through the hole on the tube plate, flows out from the heat exchange tube on the right side, and Under the definition of the first pass divider, return from the heat exchange tubes located below the second pass divider and above the first pass divider to the gap between the second pass divider and the third pass divider The cavity, and flows from the circulating pipe above the third split plate and below the first split plate to the right to the cavity below the first split plate, and returns from the heat exchange tube below the third split plate To the cavity below the third divider, and flow out from the cooling water outlet. When the cooling water in the condenser needs to be emptied, the three cooling water discharge ports can be opened to discharge the cooling water in each cavity.

The refrigerant enters from the gas phase inlet on the right side of the top of the cylinder, circulates downward and to the right, the condensed liquid is discharged from the liquid discharge port on the left side of the bottom of the cylinder, and the uncondensed steam is discharged from the gas phase outlet on the left side.

Claims (7)

1. a backhaul condenser, comprise the end socket at cylinder (6) and two ends thereof, it is characterized in that: in right side end socket (11), be provided with first pass partition (12) vertical with its end face, end socket (2) inherent first pass partition extended surface both sides, left side are respectively equipped with second pass partition (3) parallel with extended surface and the 3rd pass partition (14), end socket wall above the second pass partition is provided with cooling water inlet (1), the end socket wall below the 3rd pass partition is provided with coolant outlet (15); Cylinder (6) two ends are respectively provided with one with the tube sheet (4) of some holes (16), its inner chamber is divided into upper and lower two parts by the plane crossing axis, every part is equipped with the semicircle gripper shoe (8) of at least one and axes normal, the gripper shoe on top and the gripper shoe of bottom are crisscross arranged, each gripper shoe (8) is equipped with the supported hole (17) corresponding with the hole site on tube sheet, often organizes in corresponding hole, position and supported hole and have a heat exchanger tube (7) along Cylindorical rod to running through.

2. four backhaul condensers according to claim 1, is characterized in that: described the first pass partition (12) is positioned in plane through end socket end face diameter and vertical with end face.

3. four backhaul condensers according to claim 2, is characterized in that: described the second pass partition (3) is equal with the distance of the first pass partition extended surface with the 3rd pass partition (14).

4. four backhaul condensers according to claim 1, is characterized in that: described heat exchanger tube (7) two ends adopt welded seal to be connected with tube sheet (4).

5. four backhaul condensers according to claim 1 or 4, is characterized in that: described heat exchanger tube (7) is copper pipe.

6. four backhaul condensers according to claim 5, is characterized in that: described barrel top is provided with gas phase entrance (9) and gaseous phase outlet (5), and bottom is provided with leakage fluid dram (13).

7. four backhaul condensers according to claim 5, is characterized in that: the bottom of left side end socket is provided with cooling water drainage and eats dishes without rice or wine (10), and the top of right side end socket and bottom are respectively provided with a cooling water drainage and eat dishes without rice or wine (10).