Novel crude carbon disulfide liquid sulfur washing and cooling tower
By designing a new liquid sulfur washing and cooling tower in the production of carbon disulfide, the multiple heat exchange between high-temperature reaction gas and liquid sulfur is solved, the problem of heat energy waste is achieved, efficient heat utilization and low-temperature liquid sulfur heating is achieved, and power consumption is reduced.
Patent Information
- Application Number
- CN202421695525.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-17
AI Technical Summary
In the existing carbon disulfide production, the empty tower spraying technology leads to waste of heat energy, the high-temperature liquid sulfur temperature does not meet the standard, additional heating is required, and the overall process energy consumption is high.
A new type of crude carbon disulfide liquid sulfur washing and cooling tower is designed. By setting up low-temperature and high-temperature liquid sulfur interfaces and high-temperature reaction gas interfaces, the high-temperature reaction gas is in contact with high-temperature liquid sulfur from bottom to top, and then heat exchange with low-temperature liquid sulfur. The guides and semi-sieve plates are used to form an S-shaped flow channel to extend the contact time and promote heat exchange.
Effectively utilize the thermal energy of high-temperature reaction gas, increase the sulfur temperature of low-temperature liquids, reduce subsequent heating power consumption, improve washing efficiency, and save power consumption by 60%.
Smart Images
Figure CN223064400U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical engineering, in particular to a novel crude carbon disulfide liquid sulfur washing and cooling tower. Background Technique
[0002] At present, the carbon disulfide production industry generally uses the empty tower spraying technology to complete the cooling, washing and desulfurization of crude carbon disulfide reaction gas. Among them, the crude carbon disulfide gas enters from the lower part of the tower body and contacts countercurrently with the sulfur liquid sprayed from four different heights upward. The crude carbon disulfide gas is cooled and part of the gaseous sulfur contained therein is condensed, and is taken out with the liquid sulfur. The crude carbon disulfide gas after being cooled by the liquid sulfur comes out from the top of the tower and goes to the water washing and cooling tower. The liquid sulfur at the bottom of the tower is collected in the high-temperature liquid sulfur tank and sent into the reactor by the liquid sulfur pump; however, at present, due to the poor utilization of the heat energy brought by the high-temperature reaction gas in the design of the empty tower spraying structure, the heat energy is wasted in vain. The temperature of the liquid sulfur in the subsequent high-temperature liquid sulfur tank does not meet the standard and additional heating is required, resulting in high overall process energy consumption. Content of the Utility Model
[0003] The purpose of the utility model is to provide a novel crude carbon disulfide liquid sulfur washing and cooling tower to solve the above problems.
[0004] The utility model realizes the above purpose through the following technical solutions:
[0005] A novel crude carbon disulfide liquid sulfur washing and cooling tower includes a tower body. A wire mesh demister is arranged at the top of the tower body. A first interface for introducing low-temperature liquid sulfur is arranged on one side of the tower body. A second interface for introducing high-temperature liquid sulfur is arranged on the tower body below the first interface. A third interface for introducing high-temperature reaction gas is arranged on the tower body below the second interface, so that the high-temperature reaction gas flowing from bottom to top contacts the high-temperature liquid sulfur flowing from top to bottom and then contacts the low-temperature liquid sulfur again for heat exchange. A discharge port for the liquid sulfur to flow into the reactor is arranged at the bottom of the tower body.
[0006] Preferably, a guiding member for the flow of high-temperature reaction gas is arranged in the tower body. The first interface is located above the guiding member. The second interface is located at the middle position of the guiding member. The third interface is located below the guiding member.
[0007] Preferably, the guiding member includes a plurality of half sieve plates arranged alternately on the inner wall of the tower body, and the plurality of half sieve plates are inclined on the inner wall of the tower body. A gap for the high-temperature reaction gas to flow through is arranged between one end of the half sieve plate and the corresponding inner wall of the tower body.
[0008] Preferably, a plurality of the gaps form an S-shaped flow channel.
[0009] The beneficial effects of the present utility model are as follows:
[0010] 1. In the present utility model, the first interface and the second interface are respectively provided to introduce low-temperature liquid sulfur and high-temperature liquid sulfur. When the high-temperature reaction gas rising from the bottom contacts the high-temperature liquid sulfur first during its upward movement, the heat loss in this stage is relatively small. Then, it continues to rise and contacts the low-temperature liquid sulfur for heat exchange, heating the low-temperature liquid sulfur, ensuring the heating efficiency of the high-temperature liquid sulfur, and at the same time ensuring the washing and cooling efficiency of the high-temperature reaction gas. Overall, the heat energy brought by the high-temperature reaction gas is fully utilized for heat exchange with the low-temperature liquid sulfur, increasing the temperature of the low-temperature liquid sulfur to form high-temperature liquid sulfur and flowing into the reaction tank, reducing the subsequent heating power consumption in the reaction tank;
[0011] 2. In the present utility model, a plurality of semi-sieve plates arranged in a staggered and inclined manner are provided inside the tower body. An S-shaped flow channel is formed between the semi-sieve plates and the inner wall of the tower body, which can promote the full contact and heat exchange between the high-temperature reaction gas and the low-temperature liquid sulfur, and fully utilize the heat energy of the high-temperature reaction gas itself. Description of the Drawings
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0014] The description of the reference numerals is as follows:
[0015] 1 is the tower body, 2 is the first interface, 3 is the second interface, 4 is the third interface, 5 is the semi-sieve plate, and 6 is the discharge port. Detailed Embodiments
[0016] The following further explains the technical solutions of the present utility model in combination with the attached Figure 1 ,...
[0017] As Figure 1As shown in the figure, a new type of crude carbon disulfide liquid sulfur washing and cooling tower includes a tower body 1. A wire mesh demister is provided at the top of the tower body 1. A first interface 2 for introducing low-temperature liquid sulfur is provided on one side of the tower body 1. That is to say, a first interface is provided in the upper part of the tower body. The low-temperature liquid sulfur in the low-temperature liquid sulfur tank is introduced into the cooling tower through the first interface. The low-temperature liquid sulfur flows from the top to the bottom in the tower body and is used to finally contact and exchange heat with the high-temperature reaction gas, achieving efficient cooling and washing of the high-temperature reaction gas. At the same time, the temperature of the low-temperature liquid sulfur is increased. After heat exchange, it becomes medium-high temperature liquid sulfur and finally flows into the sulfur tank at the bottom. Then it flows from the sulfur tank into the reactor for heating to high-temperature liquid sulfur. Compared with the traditional empty tower spraying process, the overall power consumption is saved by 60%, the effect is obvious, and the benefit is significantly increased.
[0018] Specifically, as Figure 1 shown, a second interface 3 for introducing high-temperature liquid sulfur is provided on the tower body 1 below the first interface 2. That is to say, a second interface is also provided on the tower body. The height of the second interface is lower than that of the first interface, and the function of the second interface is to introduce high-temperature liquid sulfur. When introducing high-temperature reaction gas, the high-temperature reaction gas first contacts the high-temperature liquid sulfur from bottom to top, which has a preliminary washing effect on the high-temperature reaction gas at this time, but the heat loss of the high-temperature reaction gas is small. The high-temperature reaction gas continues to rise and contacts the low-temperature liquid sulfur for heat exchange, using the waste heat of the high-temperature reaction gas to contact and exchange heat with the low-temperature liquid sulfur, and washing and cooling the high-temperature reaction gas again. The washing efficiency is high, and at the same time, the low-temperature liquid sulfur is also heated. After flowing into the reactor together with the high-temperature liquid sulfur later, the heating power consumption is reduced.
[0019] A third interface 4 for introducing high-temperature reaction gas is provided on the tower body 1 below the second interface 3, so that the high-temperature reaction gas flowing from bottom to top contacts the high-temperature liquid sulfur flowing from top to bottom and then contacts the low-temperature liquid sulfur for heat exchange again. That is to say, a third interface is also provided on the tower body. The third interface is located below the second interface and is used to introduce high-temperature reaction gas. The high-temperature reaction gas contacts and exchanges heat with the high-temperature liquid sulfur flowing from top to bottom and the low-temperature liquid sulfur in turn from bottom to top.
[0020] Specifically, as Figure 1 shown, a discharge port 6 for liquid sulfur to flow into the reactor is provided at the bottom of the tower body 1. That is to say, a discharge port is also provided at the bottom of the tower body. After the high-temperature liquid sulfur and the low-temperature liquid sulfur contact and wash the high-temperature reaction gas, they finally flow to the bottom of the tower body and then are discharged into the reactor through the discharge port at the bottom of the tower body.
[0021] Specifically, as Figure 1As shown, a guiding member for the flow of high-temperature reaction gas is provided inside the tower body 1. The first interface 2 is located above the guiding member, the second interface 3 is located at the middle position of the guiding member, and the third interface 4 is located below the guiding member. That is to say, a guiding member is additionally installed inside the tower body. By using the guiding member, the rising time of the high-temperature reaction gas can be extended, and the high-temperature reaction gas can be promoted to fully contact and exchange heat with the high-temperature liquid sulfur and the low-temperature liquid sulfur. That is, the first interface is located above the guiding member, the second interface is located at the middle position of the guiding member, and the third interface is located below the guiding member.
[0022] In some embodiments, as Figure 1 shown, the guiding member includes a plurality of half sieve plates 5 arranged alternately on the inner wall of the tower body 1, and the plurality of half sieve plates 5 are inclinedly arranged on the inner wall of the tower body 1. A gap for the flow-through of the high-temperature reaction gas is provided between one end of the half sieve plate 5 and the corresponding inner wall of the tower body 1. That is to say, in this embodiment, six half sieve plates are provided. The six half sieve plates are respectively inclined downward and cross-arranged inside the tower body, and there is still a gap between the half sieve plate and the corresponding inner wall of the tower body. The plurality of gaps form an S-shaped flow channel. The high-temperature reaction gas can extend the rising time through the S-shaped flow channel, and thus the high-temperature reaction gas can be promoted to fully exchange heat and contact with the high-temperature liquid sulfur and the low-temperature liquid sulfur.
[0023] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.
Claims
1. A new type of crude carbon disulfide liquid sulfur washing and cooling tower, including a tower body, wherein a wire mesh demister is arranged at the top of the tower body, and it is characterized in that, A first interface for introducing low-temperature liquid sulfur is provided on one side of the tower body, a second interface for introducing high-temperature liquid sulfur is provided below the first interface and on the tower body, and a third interface for introducing high-temperature reaction gas is provided below the second interface and on the tower body, so that the high-temperature reaction gas from bottom to top contacts with the high-temperature liquid sulfur from top to bottom and then contacts with the low-temperature liquid sulfur again for heat exchange, and a discharge port for liquid sulfur to flow into the reactor is provided at the bottom of the tower body.
2. The novel crude carbon disulfide liquid sulfur washing and cooling tower according to claim 1, characterized in that, A guide member for high-temperature reaction gas flow is provided in the tower body, the first interface is located above the guide member, the second interface is located in the middle of the guide member, and the third interface is located below the guide member.
3. The novel crude carbon disulfide liquid sulfur washing and cooling tower according to claim 2, wherein The guide member includes a plurality of half sieve plates staggeredly arranged on the inner wall of the tower body, and a plurality of the half sieve plates obliquely arranged on the inner wall of the tower body, and a gap for the high-temperature reaction gas to flow through is provided between one end of the half sieve plate and the corresponding inner wall of the tower body.
4. The novel crude carbon disulfide liquid sulfur washing and cooling tower according to claim 3, wherein, A plurality of the intervals form an S-shaped flow channel.