CN214840740U

CN214840740U - Low-temperature hydrophobic heat supply network heater structure

Info

Publication number: CN214840740U
Application number: CN202121175748.7U
Authority: CN
Inventors: 孟令嘉; 姜宇; 李春梅; 肖建国; 宗帅; 林国庆
Original assignee: SIPING JUYUAN HANYANG PLATE HEAT EXCHANGER CO Ltd
Current assignee: SIPING JUYUAN HANYANG PLATE HEAT EXCHANGER CO Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-11-23
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to a hydrophobic heat supply network heater structure of low temperature. The device comprises a barrel, end sockets at two ends of the barrel, a circulating water inlet, a circulating water outlet, a steam inlet and a condensed water outlet, wherein a pipe bundle is arranged in the barrel, and the device also comprises a drainage pipe water inlet pipe, a drainage pipe water outlet pipe, a supercooling heat exchange pipe, a water inlet box and a water outlet box. The circulating water inlet, the drainage tube water inlet pipe, the water inlet box, the supercooling heat exchange tube, the water outlet box, the drainage tube water outlet pipe and the circulating water outlet are sequentially connected. The application breaks through the traditional difficult problem that the temperature of condensed water of the traditional heat supply network heater cannot be reduced and a platen heat exchanger must be connected in series again, and the ultra-low temperature drainage can be completed by one ultra-low temperature drainage heat supply network heater.

Description

Low-temperature hydrophobic heat supply network heater structure

Technical Field

The utility model relates to a heat supply network heater, specifically speaking are hydrophobic heat supply network heater structure of low temperature.

Background

The heat supply network heater is a key device of a heat supply network system, is one of main devices of a thermal power plant, and has the main function of heating circulating water in a hot water supply system by using extraction steam of a steam turbine or steam (heating medium) introduced from a boiler so as to meet the requirements of heat supply users, thereby realizing cogeneration.

According to the design requirement, the temperature of the condensed water discharged by the heat supply network heater needs to be reduced to below 80 ℃, and the temperature of the condensed water discharged by the conventional heat supply network heater is only reduced to 90-110 ℃ in the actual use process, so that heat loss and flow waste are caused, and the condensed water recovered by deaerators of a boiler and a gas turbine is gasified. In order to avoid the two problems, a platen heat exchanger needs to be connected in series in actual operation to realize the real cooling of the condensed water, and the purpose of safe and continuous heating without gasification of the condensed water recovered by the deaerator can be achieved. And increase a platen heat exchanger, not only initial stage investment is big, and later maintenance cost is high, and plate heat exchanger's cushion is ageing failure easily under long-time high temperature state moreover, threatens personal safety when serious, leads to stopping warm maintenance, influences the heat supply.

Disclosure of Invention

The utility model aims at providing a hydrophobic heat supply network heater structure of low temperature, this heat supply network heater can reduce the temperature of exhaust comdenstion water, and energy-conservation subtracts the consumption, and the safety lasts the heating.

The technical scheme of the utility model:

the utility model provides an ultra-low temperature is hydrophobic heat supply network heater structure, includes head, circulating water import, circulating water export, steam inlet, the comdenstion water export at barrel, barrel both ends, is equipped with the tube bank in the barrel, still includes drainage tube inlet tube, drainage tube outlet pipe, supercooling heat exchange tube, water inlet box, goes out the water box.

The supercooling heat exchange tube is arranged in the cylinder and is welded with the inner wall of the lower part of the cylinder.

The water inlet box and the water outlet box are arranged below the barrel and are in welded connection with the lower wall of the barrel, a plurality of holes are formed in the positions, corresponding to the water inlet box and the water outlet box, of the lower wall of the barrel, one end of the supercooling heat exchange tube is in welded connection with the hole formed in the position, corresponding to the water inlet box, of the lower wall of the barrel, and the other end of the supercooling heat exchange tube is in welded connection with the hole formed in the position, corresponding to the water outlet box, of the lower wall of the barrel.

One end of a water inlet pipe of the drainage pipe is connected with a circulating water inlet flange, the other end of the water inlet pipe of the drainage pipe is connected with a water inlet pipe flange at the lower end of the water inlet box, one end of a water outlet pipe of the drainage pipe is connected with a water outlet pipe flange at the lower end of the water outlet box, and the other end of the water outlet pipe of the drainage pipe is connected with a circulating water outlet flange.

The utility model has the advantages that:

1. the utility model discloses broken the traditional difficult problem that heat supply network heater comdenstion water temperature can not drop in the past, must establish ties a platen heat exchanger again, the hydrophobic heat supply network heater of an ultra-low temperature just can accomplish ultra-low temperature hydrophobic.

2. The utility model discloses combine original heat supply network heater structural style, further improve traditional heat supply network heater, realize the hydrophobic structure of heat supply network heater ultra-low temperature. The effect of saving the next-stage plate heat exchanger and protecting the deaerator from running safely is achieved. The heater can better recover waste heat. The heater is very suitable for the first-station application of a power plant heat supply network with higher steam temperature.

3. The utility model has the advantages of simple and reasonable structure, high efficiency, energy saving, high pressure resistance, low cost and easy application and manufacture.

Drawings

Figure 1 is a front view of a low temperature hydrophobic heat network heater configuration.

Fig. 2 is a partially enlarged front view.

Fig. 3 is a side view of fig. 1.

Fig. 4 is a partially enlarged view of fig. 3.

Detailed Description

In order to solve the problems in the background art, the invention provides a heating network heater.

The following detailed description is made with reference to the accompanying drawings:

the utility model provides a hydrophobic heat supply network heater structure of low temperature is on the basis of current heat supply network heater further improvement to realize reducing the mesh of comdenstion water temperature.

As shown in fig. 1 and 3, the conventional heating network heater comprises a cylinder 1, end sockets 2 at two ends of the cylinder 1, a short joint 3, an equipment flange 4, a fixed tube plate 18, a saddle 5, a circulating water inlet 6, a circulating water outlet 7, a steam inlet 8 and a condensed water outlet 9, wherein a tube bundle is arranged in the cylinder 1. This application has increased drainage tube inlet tube 10, drainage tube outlet pipe 11, subcooling heat exchange tube 12, into water box 13, play water box 14 on this basis. The barrel can be selected as an expansion barrel.

As shown in fig. 1 and 2, the supercooling heat exchange tube 12 is arranged in the cylinder 1, and the supercooling heat exchange tube 12 is welded with the inner wall of the lower part of the cylinder. The utility model discloses a supercooling heat exchange tube, including barrel 1, inlet water box 13, outlet water box 14, supercooling heat exchange tube 12, inlet water box 13, supercooling heat exchange tube 12, and barrel 1 lower wall, inlet water box 14, inlet water box 13, outlet water box 14, inlet water box 13 and outlet water box 14 are arranged below the barrel, and lower wall is opened with outlet water box 14. One end of a drainage tube water inlet pipe 10 is connected with a circulating water inlet 6 in a flange mode, the other end of the drainage tube water inlet pipe 10 is connected with a water inlet pipe 15 at the lower end of a water inlet box 13 in a flange mode, one end of a drainage tube water outlet pipe 11 is connected with a water outlet pipe 16 at the lower end of a water outlet box 14 in a flange mode, and the other end of the drainage tube water outlet pipe 11 is connected with a circulating water outlet 7 in a flange mode.

As shown in fig. 3 and 4, the inlet water box 13 and the outlet water box 14 have the same structure, are transversely fixed on the lower wall of the cylinder 1 along the cylinder, have arc-shaped sections, and have the same radian as the lower wall of the cylinder 1.

As shown in fig. 1, the supercooling heat exchange tube 12 comprises a heat exchange tube body 17, wherein two ends of the heat exchange tube body are bent downwards and then welded with a hole formed in the lower wall of the cylinder body.

The utility model provides a simple structure is reasonable, adopts the special heat exchange tube structure that increases the drainage in the bottom of the dilatation casing of heat supply network heater to the realization increases super-cooled section area and further cools down and realize further energy saving and consumption reduction's structure in order to reach the comdenstion water.

The supercooling heat exchange tube is newly added in the supercooling section in the barrel body and reversely flows to the outlet water box on the other side, and then the outlet water box is converged into the drainage tube water outlet pipe (connected by a flange), so that the aims of further cooling condensed water, improving the heat exchange effect of equipment, saving energy and reducing consumption are fulfilled. The purpose of ensuring that the recovered condensed water is not gasified when entering the deaerator and continuously supplying heat is achieved.

Claims

1. The utility model provides a hydrophobic heat supply network heater structure of low temperature, includes head, circulating water import, the circulating water export of barrel, barrel both ends, steam inlet, comdenstion water export, is equipped with tube bank, its characterized in that in the barrel: the device also comprises a drainage tube water inlet pipe, a drainage tube water outlet pipe, a super-cooling heat exchange tube, a water inlet box and a water outlet box;

the supercooling heat exchange tube is arranged in the cylinder and is welded and connected with the inner wall of the lower part of the cylinder;

the water inlet box and the water outlet box are arranged below the barrel and are welded with the lower wall of the barrel, a plurality of holes are formed in the lower wall of the barrel corresponding to the water inlet box and the water outlet box, one end of the supercooling heat exchange tube is welded with the hole formed in the lower wall of the barrel corresponding to the water inlet box, and the other end of the supercooling heat exchange tube is welded with the hole formed in the lower wall of the barrel corresponding to the water outlet box;

2. A low temperature hydrophobic heater network heater structure as claimed in claim 1, wherein: the water inlet box and the water outlet box are identical in structure, are transversely fixed on the lower wall of the barrel along the barrel, are arc-shaped in section, and are consistent in radian with the lower wall of the barrel.

3. A low temperature hydrophobic heater network heater structure as claimed in claim 1, wherein: the supercooling heat exchange tube comprises a heat exchange tube main body, and two ends of the heat exchange tube main body are welded with the hole formed in the lower wall of the cylinder body after being bent downwards.