CN218934697U

CN218934697U - Independent closed cooling circulation system of benzene hydrogenation pump equipment

Info

Publication number: CN218934697U
Application number: CN202222981998.0U
Authority: CN
Inventors: 卫晓辉; 王庚辰; 王冬冬; 陈强强; 聂慧超; 李科
Original assignee: Jiyuan Jinyuan Chemical Co ltd
Current assignee: Henan Jinyuan Hydrogen Energy Technology Co.,Ltd.
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-04-28
Anticipated expiration: 2032-11-09

Abstract

The utility model provides an independent closed cooling circulation system of benzene hydrogenation pump equipment, which relates to the technical field of pump equipment cooling systems and comprises a soft water circulation pump and a heat exchanger, wherein the heat exchanger comprises a tube side and a shell side, cooling water of a production device cooling system circulates in the tube side, an inlet of the shell side is communicated with a cooling jacket outlet of the pump equipment, an outlet of the shell side is communicated with an inlet of the soft water circulation pump, an outlet of the soft water circulation pump is communicated with a cooling jacket inlet of the pump equipment, the soft water circulation pump is connected with external supplementary soft water, the soft water circulation pump pumps the soft water into the cooling jacket of the pump equipment, the soft water enters the shell side of the heat exchanger after exchanging heat in the cooling jacket, and the soft water flows back to the soft water circulation pump for circulation after exchanging heat with the cooling water in the tube side in the shell side. The cooling system solves the problems that in the prior art, when the pump equipment and the production device cooler condenser share one cooling system and impurities in circulating water are more, the cooling effect and normal operation of the pump equipment are affected.

Description

Independent closed cooling circulation system of benzene hydrogenation pump equipment

Technical Field

The utility model belongs to the field of pump equipment cooling systems, and particularly provides an independent closed cooling circulation system of benzene hydrogenation pump equipment.

Background

In the chemical production process, the operation equipment of the benzene hydrogenation device mainly comprises a compressor and a pump, wherein the pump equipment can generate heat in the operation process, so that the pump body temperature is higher, the operation of the pump equipment is influenced, and therefore, the benzene hydrogenation pump equipment is usually required to be cooled.

In the prior art, benzene hydrogenation pump equipment commonly shares a cooling circulation system with coolers, overhead condensers and the like of other production devices. After long-time working, the interior of the circulating water pipeline is corroded, and a large amount of sundries such as rust residues and the like can be generated; in addition, the inner wall of the heat exchanger tube bundle is rusted, the flow speed and flow of cooling water are reduced, water quality alga, hardening and scaling are caused, impurities are increased, a cooling circulation system is shared, and the circulating water can bring impurities into a cooling pipeline of pump equipment together.

Because the heat exchange surface and the cooling channel of the pump equipment are much smaller than those of the heat exchanger, impurities are more easily accumulated and deposited in the cooling sleeve of the pump equipment, the cooling effect of the pump equipment is seriously reduced, and the running parts of the pump equipment can be damaged to influence the stable operation of the system. After long-time operation, the failure rate of the pump equipment is improved, the maintenance frequency of the equipment is increased intangibly, a large amount of manpower and material resources are consumed, and the operation cost is increased greatly. Meanwhile, when the cooler and the tower top condenser of other production devices are in series leakage, the whole cooling system is polluted, and pump equipment and cooling pipelines of the pump equipment are corroded.

Accordingly, there is a need in the art for an independent closed cooling circulation system for benzene hydrogenation pump type equipment to address the above-described problems.

Disclosure of Invention

The utility model provides an independent closed cooling circulation system of benzene hydrogenation pump equipment, which solves the problems that when the pump equipment and a cooler condenser of a production device share one cooling system in the prior art, the cooling effect and normal operation of the pump equipment are affected when the impurities in circulating water are more, and simultaneously solves the problems that the whole cooling system is polluted when the coolers of other production devices and the condenser at the top of the tower are in serial leakage, so that the pump equipment and a cooling pipeline thereof are corroded.

The technical scheme of the utility model is realized as follows: the utility model provides an independent closed cooling circulation system of benzene hydrogenation pump class equipment, includes soft water circulating pump and heat exchanger, the heat exchanger includes tube side and shell side, wherein circulate the cooling water of apparatus cooling system in the tube side, the import of shell side and the cooling jacket export intercommunication of pump class equipment, the export of shell side and the import intercommunication of soft water circulating pump, the export of soft water circulating pump and the cooling jacket import intercommunication of pump class equipment, soft water circulating pump has inserted external supplementary soft water, soft water circulating pump pumps soft water into the cooling jacket of pump class equipment in, soft water gets into in the shell side of heat exchanger after the heat transfer in the cooling jacket, reflux to soft water circulating pump circulates after the cooling water heat transfer in shell side and the tube side.

In the above-mentioned independent closed cooling circulation system of benzene hydrogenation pump class equipment's preferred technical scheme, apparatus for producing cooling system includes cooling water circulating pump and cooling tower, and the cooling water of apparatus for producing cooling system pumps into the cooling tower through the cooling water circulating pump after heat transfer and cools off, and the delivery port of cooling tower communicates respectively with apparatus for producing cooling system's cooler and the heat exchanger tube side entry of pump class equipment, heat exchanger tube side export and cooling water circulating pump intercommunication.

In the preferred technical scheme of the independent closed cooling circulation system of the benzene hydrogenation pump equipment, a soft water tank is arranged between the inlet of the soft water circulation pump and the outlet of the shell side, the soft water tank is provided with a soft water supplementing port, and the soft water supplementing port is provided with a first valve.

In the preferable technical scheme of the independent closed cooling circulation system of the benzene hydrogenation pump equipment, a water supplementing groove is connected to the inlet of the cooling water circulation pump, the water supplementing groove is provided with a water supplementing port, and the water supplementing port is provided with a second valve.

In the preferred technical scheme of the independent closed cooling circulation system of the benzene hydrogenation pump equipment, the heat exchanger comprises a shell, a heat transfer tube bundle, a tube plate and a baffle plate, wherein the heat transfer tube bundle is arranged in the shell through the tube plate to form a tube pass, and the baffle plate is arranged in the shell at intervals up and down to form a shell pass.

The beneficial effects are that: the independent closed cooling circulation system of the pump equipment is used, so that the cooling efficiency of the pump equipment is greatly increased, the equipment failure rate and the maintenance rate of the pump equipment caused by the blockage of a cooling jacket are greatly reduced, the stable operation of the pump equipment and a production system is ensured, and the consumption of manpower and material resources is also reduced; the purchase quantity of the operating parts of the pump equipment is greatly reduced, and the production cost is directly reduced.

Drawings

FIG. 1 is a schematic diagram of a heat exchanger of an independent closed cooling circulation system of a benzene hydrogenation pump device;

fig. 2 is a heat exchange flow chart of an independent closed cooling circulation system of benzene hydrogenation pump equipment.

List of reference numerals: 1. a heat exchanger; 11. a housing; 12. a heat transfer tube bundle; 13. a tube sheet; 14. a baffle plate; 15. a seal head; 2. a soft water circulation pump; 3. a soft water tank; 4. a cooling water circulation pump; 5. a cooling tower; 6. a cooler; 7. a condenser; 8. a water supplementing tank; 9. pump-like devices.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships, which are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

The utility model relates to a concrete embodiment of an independent closed cooling circulation system of benzene hydrogenation pump equipment, which comprises the following components: as shown in fig. 1 and 2, an independent closed cooling circulation system of benzene hydrogenation pump equipment comprises a soft water circulation pump 2 and a heat exchanger 1, wherein the heat exchanger 1 comprises a shell 11, a heat transfer tube bundle 12, a tube plate 13, a baffle plate 14 and a seal head 15, the heat transfer tube bundle 12 is arranged in the shell 11 through the tube plate 13, the seal head 15 is positioned at two ends of the shell 11 and forms a tube pass with the heat transfer tube bundle 12, and the seal heads 15 at the two ends are provided with an inlet and an outlet which are communicated with the tube pass; the baffle plates 14 are arranged in the shell 11 at intervals up and down, form a shell pass with the shell 11, and the shell 11 is provided with an inlet and an outlet communicated with the shell pass.

The cooling water of the cooling system of the production device circulates in the tube side, the inlet of the shell side is communicated with the outlet of the cooling jacket of the pump type equipment 9, the outlet of the shell side is communicated with the inlet of the soft water circulating pump 2, and the outlet of the soft water circulating pump 2 is communicated with the inlet of the cooling jacket of the pump type equipment 9. The soft water circulation pump 2 is connected with the supplementary soft water by opening the first valve, and pumps the soft water into the cooling jacket of the pump type equipment 9, the soft water enters the shell side of the heat exchanger 1 after cooling and heat exchanging the pump type equipment 9 in the cooling jacket, and flows back to the soft water circulation pump 2 for circulation after heat exchanging with the cooling water in the tube side in the shell side.

The production device cooling system comprises a cooling water circulating pump 4 and a cooling tower 5, cooling water of the production device cooling system cools production equipment after cooling and heat exchanging, the cooling water is pumped into the cooling tower 5 through the cooling water circulating pump 4, cooled cooling water in the cooling tower 5 respectively enters a cooler 6, a condenser 7 and a heat exchanger 1 tube side of pump equipment 9 of the production device cooling system, the cooling water exchanges heat with soft water in a shell side of the heat exchanger 1, then enters the cooling water circulating pump 4, and is pumped into the cooling tower 5 for cooling through the cooling water circulating pump 4, so that a circulating heat exchanging process is formed.

The inlet of the cooling water circulating pump 4 is connected with a water supplementing groove 8, the water supplementing groove 8 is provided with a water supplementing port, and the water supplementing port is provided with a second valve. And cooling water is supplemented into the water supplementing tank 8 by opening the second valve, and the cooling water circulating pump 4 pumps the cooling water into the cooling tower 5 for cooling and then participates in heat exchange circulation.

The specific heat exchange process of the independent closed cooling circulation system of the benzene hydrogenation pump equipment is as follows: the soft water in the shell side of the heat exchanger 1 exchanges heat with the cooling water in the tube side and then the temperature is reduced, the soft water is pumped into the cooling jackets of the benzene hydrogenation pump type equipment 9 by the soft water circulating pump 2, the pump type equipment 9 is cooled, the temperature is increased after the soft water exchanges heat, the soft water enters the shell side of the heat exchanger 1 and exchanges heat with the cooling water in the tube side of the heat exchanger 1 to reduce the temperature, and then the soft water is pumped into the cooling jackets of the pump type equipment 9 by the soft water circulating pump 2 to form heat exchange circulation; after the cooling water in the tube side of the heat exchanger 1 exchanges heat with soft water in the shell side, the temperature rises, and then the cooling water and the cooling water exchanged in the production device cooler 6 and the condenser 7 are pumped into the cooling tower 5 by the cooling water circulating pump 4 to be cooled, the cooled cooling water respectively enters the heat exchanger 1 of the production device cooler 6, the condenser 7 and the pump equipment 9 to be cooled, and the cooling water after heat exchange is pumped into the cooling tower 5 by the cooling water circulating pump 4 to be cooled, so that cooling circulation is formed.

In the above embodiments, the heat exchanger includes a shell, a heat transfer tube bundle, a tube sheet, a baffle plate, and an end enclosure, which is a tube array type heat exchanger, and in other embodiments, the heat exchanger may be configured as another type of heat exchanger, for example, a plate type heat exchanger, etc.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides an independent closed cooling circulation system of benzene hydrogenation pump class equipment, its characterized in that includes soft water circulating pump and heat exchanger, the heat exchanger includes tube side and shell side, wherein circulate the cooling water of apparatus cooling system in the tube side, the import of shell side and the cooling jacket export intercommunication of pump class equipment, the export of shell side and the import intercommunication of soft water circulating pump, the export of soft water circulating pump and the cooling jacket import intercommunication of pump class equipment, soft water circulating pump inserts the soft water that has external replenishment, soft water circulating pump pumps soft water into the cooling jacket of pump class equipment, soft water gets into in the shell side of heat exchanger after the heat transfer in the cooling jacket, backward flow to soft water circulating pump circulates after the cooling water heat transfer in shell side and tube side.

2. The independent closed cooling circulation system of benzene hydrogenation pump equipment according to claim 1, wherein the cooling system of the production device comprises a cooling water circulation pump and a cooling tower, the cooling water of the cooling system of the production device is pumped into the cooling tower for cooling through the cooling water circulation pump after heat exchange, a water outlet of the cooling tower is respectively communicated with a cooler of the cooling system of the production device and a tube side inlet of a heat exchanger of the pump equipment, and a tube side outlet of the heat exchanger is communicated with the cooling water circulation pump.

3. The benzene hydrogenation pump-like equipment independent closed cooling circulation system according to claim 2, wherein a soft water tank is provided between the inlet of the soft water circulation pump and the outlet of the shell side, the soft water tank is provided with a soft water supplementing port, and the soft water supplementing port is provided with a first valve.

4. The independent closed cooling circulation system of benzene hydrogenation pump equipment according to claim 3, wherein the inlet of the cooling water circulation pump is connected with a water supplementing tank, the water supplementing tank is provided with a water supplementing port, and the water supplementing port is provided with a second valve.

5. The independent closed cooling circulation system of benzene hydrogenation pump equipment according to claim 4, wherein the heat exchanger comprises a shell, a heat transfer tube bundle, a tube plate and a baffle plate, wherein the heat transfer tube bundle is arranged in the shell through the tube plate to form a tube pass, and the baffle plate is arranged in the shell at intervals up and down to form a shell pass.