CN206001962U - Low Temperature Steam waste-heat recovery device - Google Patents

Abstract

The utility model discloses a low-temperature steam waste heat recovery device, which comprises a casing, a partition plate and a plurality of heat pipes, the partition plate is placed horizontally in the casing, and the casing is divided into upper and lower parts, and the upper part is for exothermic The lower part is the heat-absorbing area, and the plurality of heat pipes are vertically arranged in the shell at equal intervals through the partition plate, the condensation end of the heat pipe is located in the heat release area, the evaporation end of the heat pipe is located in the heat-absorbing area, A low-temperature steam inlet is set on the left side wall, a low-temperature steam outlet is set on the right side wall of the heat absorption area, a clean air inlet is set on the right side wall of the heat release area, and a clean air inlet is set on the left side wall of the heat release area. The air outlet, the clean air outlet is connected to the spray drying tower, the lower part of the heat absorption area is connected to the water collecting bucket, and the bottom of the water collecting bucket is provided with a drain pipe, and the drain pipe is connected to the cooling water collecting device. Its device can simultaneously recover and reuse the heat of low-temperature steam and the generated condensate.

Description

Low temperature steam waste heat recovery device

technical field

The utility model relates to a low-temperature steam waste heat recovery device.

Background technique

In industrial production, not only a large amount of energy is required, but also a large amount of waste heat of various types is generated and wasted, especially low-temperature waste heat. Due to the low calorific value of waste heat, it is required that the waste heat recovery device can transfer large heat flow under small heat transfer temperature and pressure. , high heat recovery rate, low resistance, but also requires a simple, compact, economical structure, and can properly handle low-temperature corrosion problems. Conventional heat exchangers have low heat transfer temperature and pressure, large volume, high investment costs, or because of long heat transfer process, large resistance, sharp increase in driving power consumption, high operating costs, or complex manufacturing and difficult maintenance. Or its application in waste heat recovery is limited due to corrosion, fouling, critical equipment life, etc.

In addition, the efficient and comprehensive utilization of a large amount of condensate produced by steam tracing while recovering low-temperature steam waste heat is also a problem to be solved.

Utility model content

The utility model provides a low-temperature steam waste heat recovery device, which can simultaneously recover and reuse the heat of the low-temperature steam and the generated condensate.

In order to solve the above problems, the technical solution adopted by the present invention is as follows. A low-temperature steam waste heat recovery device includes a casing, a partition plate and a plurality of heat pipes, and the partition plate is placed horizontally in the casing to separate the casing. It consists of upper and lower parts, the upper part is the heat release area, and the lower part is the heat absorption area. The plurality of heat pipes pass through the partition board and are vertically arranged in the shell at equal intervals. The condensation ends of the heat pipes are located in the heat release area. The evaporating end is located in the heat-absorbing area, a low-temperature steam inlet is provided on the left side wall of the heat-absorbing area, a low-temperature steam outlet is provided on the right side wall of the heat-absorbing area, and a clean air inlet is provided on the right side wall of the heat-releasing area. The clean air inlet is connected with the blower, and a clean air outlet is arranged on the left side wall of the heat release area, and the clean air outlet is connected with the spray drying tower, and the lower part of the heat absorption area is connected with the water collecting bucket, and the water collecting bucket The bottom is provided with a drainage pipe, and the said drainage pipe is connected with the cooling water collecting device.

Preferably, a drain valve is provided between the drain pipe and the cooling water collecting device.

Beneficial effects: the lower part of the device is a low-temperature steam channel, the upper part is a clean air channel, and there is a partition plate in the middle to separate them without interfering with each other. The hot, low-temperature steam cools down, condenses into condensate, enters the water collecting bucket, and is collected by the cooling water collection device through the drain pipe. The end recondenses into a liquid, returns to the evaporation section of the heat pipe, releases heat to heat the clean air, and the temperature of the clean air rises after flowing through the heat pipe, and enters the spray drying tower for drying of biological pesticides, medicines or food microorganisms.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

In order to deepen the understanding of the utility model, the utility model will be further described below in conjunction with the embodiments and accompanying drawings. The embodiment is only used to explain the utility model and does not constitute a limitation to the protection scope of the utility model.

Referring to Fig. 1, a low-temperature steam waste heat recovery device includes a casing 1, a partition plate 2 and a plurality of heat pipes 3, and the partition plate 2 is placed horizontally in the casing 1 to separate the casing 1 into upper and lower parts , the upper part is the heat release area 4, and the lower part is the heat absorption area 5. The plurality of heat pipes 3 pass through the partition plate 2 and are vertically arranged in the shell 1. The condensation ends of the heat pipes 3 are located in the heat release area. The evaporating end is located in the heat-absorbing area. A low-temperature steam inlet 6 is provided on the left side wall of the heat-absorbing area, a low-temperature steam outlet 7 is provided on the right side wall of the heat-absorbing area, and a clean air outlet is provided on the right side wall of the heat-releasing area. Inlet 8, the clean air inlet is connected with the blower 9, a clean air outlet 10 is arranged on the left side wall of the heat release area, and the clean air outlet 10 is connected with the spray drying tower 11, the lower part of the heat absorption area 5 is connected with the collector The water bucket 12 is connected, and the bottom of the water collecting bucket 12 is provided with a drain pipe, and the drain pipe 12 is connected with the cooling water collecting device 13. Preferably, a drain valve 14 is arranged between the drain pipe and the cooling water collecting device .

As shown in Figure 1, the low-temperature steam enters from the low-temperature steam inlet 6, and the flue gas that enters begins to flush the evaporation section of the heat pipe 3. At this time, the heating section of the heat pipe 3 absorbs heat, and the temperature of the low-temperature steam gradually drops after passing through the heat pipe, and condenses into condensation The liquid enters the water collecting bucket 12 and is collected by the cooling water collecting device 13 through the drain pipe. When the evaporation section of the heat pipe 3 is heated, the liquid in the heat pipe 3 evaporates rapidly, and the steam flows to the condensation end of the heat pipe under a small pressure difference. , clean air at normal temperature enters from the clean air inlet 8 under the action of the blower 9, and flows in the opposite direction to scour the heat pipe in the heat release area. The clean air is heated, and the temperature of the clean air rises after flowing through the heat pipe, and exits from the clean air outlet 10, and enters the spray drying tower 11 for drying of biological pesticides, medicines or food microorganisms.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (2)

1. A low-temperature steam waste heat recovery device, characterized in that it includes a shell, a partition plate and a plurality of heat pipes, the partition plate is placed horizontally in the shell, and the shell is divided into upper and lower parts, and the upper part is for placing The heat zone, the lower part is the heat-absorbing zone, the plurality of heat pipes pass through the partition plate and are vertically arranged in the shell at equal intervals, the condensation end of the heat pipe is located in the heat release zone, the evaporation end of the heat pipe is located in the heat-absorbing zone, and the heat-absorbing There is a low-temperature steam inlet on the left side wall of the heat-absorbing area, a low-temperature steam outlet on the right side wall of the heat-absorbing area, a clean air inlet on the right side wall of the heat-releasing area, and a The clean air outlet is connected to the spray drying tower, the lower part of the heat-absorbing area is connected to the water collecting bucket, and the bottom of the water collecting bucket is provided with a drain pipe, and the drain pipe is connected to the cooling water collecting device. 2. A low-temperature steam waste heat recovery device according to claim 1, characterized in that a drain valve is provided between the drain pipe and the cooling water collecting device.