Full-touch type desuperheater

Abstract

The invention relates to the technical field of heat exchange, and discloses a full-touch desuperheater which comprises a desuperheater shell, a first flange is fixedly connected to the outer wall of the desuperheater shell, a flange cover is arranged on the upper surface of the first flange, and a partition supporting plate is fixedly connected to the inner wall of the desuperheater shell. The interior of the partition supporting plate is fixedly connected with an atomizing cylinder, a desuperheater shell is fixed to the inner wall of the upper side of the atomizing cylinder, a splash plate is connected to the inner wall of the upper side of the atomizing cylinder, the inner wall of the lower side of the atomizing cylinder is fixedly connected with a bottom plate, four circulation holes are formed in the atomizing cylinder, and the bottom plate is connected with the circulation holes. Through driving the superheated steam and the wet reaction ring in the atomization cylinder and the temperature difference between the superheated steam and the wet reaction ring, the steam heat is rapidly conducted to the reaction ring and water drops on the surface to generate heat exchange, the water drops are heated and vaporized, and a large amount of steam heat is absorbed, so that the heat exchange is efficiently realized, the steam temperature is accurately regulated and controlled, and the ideal temperature reduction purpose is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange, in particular to a full-contact desuperheater. Background Art

[0002] The cooling accuracy of the desuperheater is limited by the control system (the adjustment and control accuracy of the desuperheating water regulating valve, the control accuracy of the temperature transmitter, the efficiency and accuracy of the signal transmission of the central control system) and the adjustable ratio of the desuperheater selection. A high-precision control system is the basis for achieving high-precision cooling system, and the adjustable ratio of the desuperheater is the guarantee of precise control of the entire cooling process.

[0003] However, in current technology, the desuperheater commonly used is a nozzle-type desuperheater or a Venturi-type desuperheater, and the injection amount of desuperheating water is controlled by a desuperheating water regulating valve. The desuperheating water regulating valve relies on the signal output by the temperature sensor after the desuperheater to adjust the opening. The delay in the signal transmission process will cause the opening adjustment of the desuperheating water regulating valve to be delayed, and in situations where the demand for desuperheating water is very small, the opening response of the regulating valve will directly cause a decrease in the temperature regulation accuracy, resulting in the desuperheating water injection amount being far greater than the demand, which will cause the desuperheating water to not be fully atomized, affecting the steam desuperheating effect. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a full-touch desuperheater to solve the problem that when the amount of desuperheating water sprayed is greater than the required amount, the desuperheating water cannot be fully atomized, thereby affecting the desuperheating effect.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a full-touch cooler, comprising a cooler shell, the outer wall of the cooler shell is fixedly connected to a first flange, the upper surface of the first flange is provided with a flange cover, the inner wall of the cooler shell is fixedly connected to a partition support plate, the interior of the partition support plate is fixedly connected to an atomizing tube, the upper inner wall of the atomizing tube is fixedly connected to the cooler shell with a splash plate, the lower inner wall of the atomizing tube is fixedly connected to a bottom plate, four flow holes are opened inside the atomizing tube, and the bottom plate is connected to the flow holes.

[0006] Preferably, a cooling water inlet pipe is provided inside the flange cover, and the outer wall of the cooling water inlet pipe passes through the flange cover and is provided inside the atomizing tube.

[0007] Preferably, a mounting hole is provided inside the desuperheater housing for mounting and positioning the desuperheater housing by means of bolts.

[0008] Preferably, a sealing head is provided on the lower surface of the desuperheater shell, and the sealing head is used to seal the interior of the desuperheater shell.

[0009] Preferably, a drain pipe is provided in the middle of the head, and the drain pipe is provided inside the desuperheater shell through the head.

[0010] Preferably, a steam inlet is provided inside one side of the desuperheater shell, and a steam outlet is provided inside the other side of the desuperheater shell.

[0011] Working principle: After the cooling water enters the interior of the atomizing tube through the cooling water inlet pipe, it first flows through the splash plate to achieve uniform distribution, and then is distributed on the porous plate above the atomizing tube containing the reaction ring. After passing through the reaction ring of the atomizing tube, it is fully moistened, thereby providing sufficient steam contact area, and the high-temperature steam passes through the reaction ring area through the steam inlet, and is cooled to saturated steam of the set temperature through full contact with the moistened reaction ring. It flows out from the bottom plate on the lower side of the atomizing tube, and then flows out through the flow hole through the deflection plate and the separator. The remaining condensed water and the condensed water generated in the shutdown state are discharged through the drain pipe to ensure the dry quality of the steam and at the same time protect the equipment from water hammer impact.

[0012] The present invention provides a full-touch desuperheater having the following beneficial effects:

[0013] 1. The present invention drives the superheated steam and the wet reaction ring in the atomizing tube. The temperature difference between the superheated steam and the wet reaction ring causes the steam heat to be rapidly transferred to the reaction ring and the water droplets on the surface, resulting in heat exchange. The water droplets are heated and vaporized, absorbing a large amount of steam heat, thereby efficiently realizing heat exchange and accurately controlling the steam temperature to achieve the ideal cooling purpose.

[0014] 2. The present invention saves the consumption of cooling water resources by fully atomizing and absorbing the cooling water. It can be applied to various complex working conditions, especially those with large fluctuations in steam consumption. It can achieve precise temperature regulation in situations with large pipe diameters, small flow rates, and low flow rates. At the same time, the cooling effect is far better than that of other types of coolers.

[0015] 3. The desuperheater of the present invention does not suffer from scaling and damage to the nozzles of other types of desuperheating atomizing devices, which affects the desuperheating effect, thereby improving the pressure-bearing strength, temperature resistance and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a cross-sectional view of a full-touch desuperheater of the present invention;

[0017] Figure 2 A comparison chart of different types of desuperheaters.

[0018] Among them, 1. Desuperheater shell; 2. First flange; 3. Flange cover; 4. Desuperheater water inlet pipe; 5. Partition support plate; 6. Atomizing tube; 7. Splash plate; 8. Flow hole; 9. Bottom plate; 10. Drain pipe; 11. Head; 12. Mounting hole; 13. Steam inlet; 14. Steam outlet. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Please see the attached Figure 1 An embodiment of the present invention provides a full-touch cooler, including a cooler housing 1, an outer wall of the cooler housing 1 is fixedly connected to a first flange 2, an upper surface of the first flange 2 is provided with a flange cover 3, an inner wall of the cooler housing 1 is fixedly connected to a partition support plate 5, an interior of the partition support plate 5 is fixedly connected to an atomizing tube 6, an upper inner wall of the atomizing tube 6 is fixedly connected to the cooler housing 1 with a splash plate 7, a lower inner wall of the atomizing tube 6 is fixedly connected to a bottom plate 9, four flow holes 8 are opened inside the atomizing tube 6, and the bottom plate 9 is connected to the flow holes 8.

[0021] Specifically, the desuperheater housing 1 serves as the external structure of the entire equipment to protect the internal components from the influence of the external environment, and the desuperheater housing 1 has a fixed support function for the first flange 2. The first flange 2 can be connected to the corresponding flange of other pipes or equipment by bolts to achieve stable entry of desuperheated water and ensure the sealing of the connection. It is also convenient to quickly separate the desuperheater housing 1 from the relevant pipeline during equipment maintenance or overhaul. The flange cover 3 is installed on the upper surface of the first flange 2 to seal the interior of the desuperheater housing 1 and ensure the sealing of the desuperheater housing 1. The desuperheater housing 1 has a fixed support function for the partition support plate 5. The partition support plate 5 can support and separate the internal structure of the desuperheater housing 1, enhance the stability of the internal structure of the equipment, and support the position of the atomizer tube 6. The atomizer tube 6 is provided with a porous plate and a reaction ring to provide sufficient steam contact area to ensure the stability and efficiency of the reaction. The splash plate 7 can evenly distribute the desuperheated water to the interior of the atomizer tube 6. After the reaction in the atomizer tube 6, the bottom plate 9 discharges the desuperheated water through the flow hole 8.

[0022] A cooling water inlet pipe 4 is provided inside the flange cover 3 , and the outer wall of the cooling water inlet pipe 4 passes through the flange cover 3 and is provided inside the atomizing tube 6 .

[0023] Specifically, the cooling water inlet pipe 4 accurately introduces external cooling water into a specific position in the atomizing tube 6, enters the mixing area of the steam, fully contacts with the steam and undergoes heat exchange, so that the cooling water can be quickly atomized in the atomizing tube 6 after entering, greatly increasing the contact area between the cooling water and the steam, thereby achieving efficient heat transfer and quickly reducing the steam temperature.

[0024] A mounting hole 12 is provided inside the desuperheater housing 1 for mounting and positioning the desuperheater housing 1 by means of bolts.

[0025] Specifically, the desuperheater housing 1 can be mounted on the external device by means of bolts passing through the mounting holes 12 , thereby providing a reliable positioning reference for the installation, thereby reducing the installation space and achieving a space-saving effect.

[0026] A sealing head 11 is provided on the lower surface of the desuperheater housing 1 , and the sealing head 11 is used to seal the interior of the desuperheater housing 1 .

[0027] Specifically, the bottom of the desuperheater housing 1 is sealed by the head 11 to ensure that a stable and closed space is formed inside, effectively preventing leakage of the internal medium, maintaining internal pressure stability, and preventing external impurities from entering and interfering with the desuperheating operation.

[0028] A drain pipe 10 is provided in the middle of the head 11 , and the drain pipe 10 is provided inside the desuperheater housing 1 through the head 11 .

[0029] Specifically, the condensed water accumulated at the bottom of the desuperheater is drained out through the drain pipe 10 to avoid a large amount of condensed water accumulation inside, prevent the steam from carrying water due to excessive condensed water, avoid damage to subsequent equipment, and thus improve the overall working efficiency of the desuperheater, ensure the dry quality of the steam, and at the same time ensure that the equipment is not affected by water hammer.

[0030] A steam inlet 13 is provided inside one side of the desuperheater shell 1 , and a steam outlet 14 is provided inside the other side of the desuperheater shell 1 .

[0031] Specifically, the steam inlet 13 provides a channel for high-temperature steam to enter the desuperheater and mix with the desuperheating water to reduce the temperature. At the same time, the steam outlet 14 is responsible for transporting the steam that has been desuperheated and has a temperature that meets the requirements to the subsequent process links.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A full-touch desuperheater, comprising a desuperheater housing (1), characterized in that: The outer wall of the desuperheater housing (1) is fixedly connected to a first flange (2), the upper surface of the first flange (2) is provided with a flange cover (3), the inner wall of the desuperheater housing (1) is fixedly connected to a partition support plate (5), the interior of the partition support plate (5) is fixedly connected to an atomizing tube (6), the upper inner wall of the atomizing tube (6) is fixedly connected to the desuperheater housing (1) and is connected to a splash plate (7), the lower inner wall of the atomizing tube (6) is fixedly connected to a bottom plate (9), four flow holes (8) are opened inside the atomizing tube (6), and the bottom plate (9) is connected to the flow holes (8).

2. A full-touch desuperheater according to claim 1, characterized in that: A cooling water inlet pipe (4) is provided inside the flange cover (3), and the outer wall of the cooling water inlet pipe (4) passes through the flange cover (3) and is provided inside the atomizing tube (6).

3. A full-touch desuperheater according to claim 1, characterized in that: The interior of the desuperheater housing (1) is provided with a mounting hole (12) for mounting and positioning the desuperheater housing (1) via bolts.

4. A full-touch desuperheater according to claim 1, characterized in that: A sealing head (11) is provided on the lower surface of the desuperheater housing (1), and the sealing head (11) is used to seal the interior of the desuperheater housing (1).

5. A full-touch desuperheater according to claim 4, characterized in that: A drain pipe (10) is provided in the middle of the seal head (11), and the drain pipe (10) is provided inside the desuperheater housing (1) through the seal head (11).

6. The full-touch desuperheater according to claim 1, characterized in that: A steam inlet (13) is provided inside one side of the desuperheater shell (1), and a steam outlet (14) is provided inside the other side of the desuperheater shell (1).

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