Cooling water circulation system for coal gas pressurizing machine

Abstract

The utility model relates to the technical field of gas pressurizing machine cooling, and solves the problems of high cooling water consumption and high sewage treatment cost of a gas pressurizing machine. The cooling water circulation system for the coal gas pressurizing machine comprises an air compressor cooling tower. The air compressor cooling tower fan is arranged at the top of the air compressor cooling tower; one end of the air compressor cooling water pump is connected with the air compressor cooling tower through a pipeline, and the other end is connected with the freezing dryer cooling water inlet pipe through a pipeline; the air compressor cooling water pump is used for pumping cooling water in the air compressor cooling tower into the freezing dryer cooling water inlet pipe; the freezing dryer cooling water inlet pipe is connected with the gas pressurizer through a gas pressurizer water inlet pipe; one end of the freezing dryer cooling water return pipe is connected with the gas pressurizing machine water outlet pipe, and the other end is connected with the air compressor cooling tower. By integrating the air compressor cooling tower, the freezing dryer and the coal gas pressurizing machine, cooling heat exchange in the pressurizing machine is achieved, cooling water in the air compressor cooling tower is recycled in a closed mode, and environment protection, energy conservation and consumption reduction are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal gas pressurizer cooling technical field, in particular to a kind of cooling water circulation system for coal gas pressurizer. BACKGROUND

[0002] In present coal gas workshop, converter gas pressurizer bearing box cooling water uses electric dust removal production water supplement as cooling water, and the water after cooling is directly discharged into electric dust removal sewage collection pool, and then is transported to sewage treatment plant for treatment by lifting pump, which consumes a large amount of cooling water on the one hand, and increases workshop sewage treatment cost on the other hand, which is not conducive to workshop production cost control. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a kind of cooling water circulation system for coal gas pressurizer, to solve the problems of high water consumption and high sewage treatment cost of coal gas pressurizer cooling water in prior art.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] The utility model provides a kind of cooling water circulation system for coal gas pressurizer, comprising:

[0006] air compressor cooling tower;

[0007] air compressor cooling tower fan, the air compressor cooling tower fan is arranged at the top of the air compressor cooling tower;

[0008] air compressor cooling water pump, one end of the air compressor cooling water pump is connected with the air compressor cooling tower through pipeline, and the other end of the air compressor cooling water pump is connected with the cold dryer cooling water inlet pipe through pipeline; the air compressor cooling water pump is used to pump the cooling water in the air compressor cooling tower into the cold dryer cooling water inlet pipe; the cold dryer cooling water inlet pipe is connected with coal gas pressurizer through coal gas pressurizer water inlet pipe;

[0009] cold dryer cooling water return pipe, one end of the cold dryer cooling water return pipe is connected with coal gas pressurizer water outlet pipe, and the other end of the cold dryer cooling water return pipe is connected with the air compressor cooling tower.

[0010] Further, a first manual butterfly valve is arranged on the pipeline between the air compressor cooling tower and the air compressor cooling water pump.

[0011] Further, a check valve, an electric butterfly valve and a second manual butterfly valve are sequentially arranged in the flow direction of cooling water on the pipeline between the air compressor cooling water pump and the cold dryer cooling water inlet pipe.

[0012] Further, a self-cleaning filter is connected in parallel downstream of the second manual butterfly valve.

[0013] Further, the connecting position of the cooling water inlet pipe of the refrigerating machine and the cooling water inlet pipe of the gas pressurizing machine is also provided with an emergency cooling water pipe.

[0014] Further, the cooling water inlet pipe of the refrigerating machine is provided with a first stop valve, and the cooling water inlet pipe of the refrigerating machine is used to deliver the cooling water pumped out by the air compressor cooling water pump into the bearing box cooling coil in the gas pressurizing machine.

[0015] Further, the cooling water return pipe of the refrigerating machine is provided with a second stop valve, and the cooling water return pipe of the refrigerating machine is used to return the cooling water after heat exchange in the bearing box cooling coil of the gas pressurizing machine to the air compressor cooling tower for heat exchange and cooling.

[0016] Due to the above technical scheme, the utility model has the following advantages compared with the prior art:

[0017] The utility model discloses a cooling water circulating system for a gas pressurizing machine, which is connected with the cooling water inlet and return pipe of the gas pressurizing machine through the cooling water inlet and return pipe of the air compressor refrigerating machine. The cooling water in the air compressor cooling tower is delivered into the cooling water inlet pipe of the gas pressurizing machine through the air compressor cooling water pump and the cooling water inlet pipe of the refrigerating machine, and then is returned to the air compressor cooling tower through the cooling water return pipe of the refrigerating machine and the cooling water outlet pipe of the gas pressurizing machine after heat exchange in the gas pressurizing machine. The cooling water is cooled and heat-exchanged in the air compressor cooling tower and then is recycled to the gas pressurizing machine for heat exchange, thereby forming a closed cooling water circulating system for the gas pressurizing machine. The water consumption is reduced, the original sewage treatment cost is reduced, and the environmental protection, energy saving and consumption reduction are realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Some specific embodiments of the utility model will be described in detail below with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference signs in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the drawings:

[0019] Figure 1 is a plan view of the cooling water circulating system for the gas pressurizing machine provided by the utility model;

[0020] Figure 2 is a structural schematic view of the gas pressurizing machine provided by the utility model;

[0021] Figure 3 is a cooling water flow schematic view of the cooling water circulating system for the gas pressurizing machine provided by the utility model;

[0022] In the drawings, the reference signs are explained as follows:

[0023] 1, air compressor cooling tower; 2, air compressor cooling tower fan; 3, air compressor cooling water pump; 4, cold dryer cooling water inlet pipe; 5, cold dryer cooling water return pipe; 6, first manual butterfly valve; 7, check valve; 8, electric butterfly valve; 9, second manual butterfly valve; 10, self-cleaning filter; 11, emergency cooling water pipeline; 12, first stop valve; 13, second stop valve; 14, gas pressurizing machine; 140, gas pressurizing machine water inlet pipe; 1401, water inlet branch pipe; 141, gas pressurizing machine water outlet pipe; 1411, water outlet branch pipe; 142, bearing box cooling coil. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] In the embodiments of the present application, a cooling water circulation system for a gas pressurizing machine is provided, as shown in Figure 1 and Figure 2 The system specifically comprises an air compressor cooling tower 1, an air compressor cooling tower fan 2, an air compressor cooling water pump 3, a cold dryer cooling water inlet pipe 4 and a cold dryer cooling water return pipe 5.

[0026] The air compressor cooling tower 1 is used to provide circulating cooling water for the gas pressurizing machine, thereby cooling and heat exchanging in the gas pressurizing machine 14.

[0027] The air compressor cooling tower 1 is provided with the air compressor cooling tower fan 2 at the top. The fan is arranged to accelerate the air flow in the cooling tower through ventilation, thereby improving the heat exchange rate of the cooling water and the air. Moreover, the cooling tower fan also helps to improve the temperature of the surrounding environment and reduce the heat island effect.

[0028] In the present embodiment, the air compressor cooling water pump 3 is arranged on one side of the air compressor cooling tower 1, and the air compressor cooling tower 1 and the air compressor cooling water pump 3 are connected through a pipeline. The other end of the air compressor cooling water pump 3 is connected with the cold dryer cooling water inlet pipe 4 through a pipeline. The cooling water in the air compressor cooling tower 1 is pumped into the cold dryer cooling water inlet pipe 4 through the air compressor cooling water pump 3. The number of the air compressor cooling water pump 3 can be reasonably arranged according to the production needs. In the present embodiment, two air compressor cooling water pumps 3 are arranged to realize one standby and one use. Of course, other numbers of air compressor cooling water pumps can also be arranged, which should also be covered within the protection scope of the present application.

[0029] The cooling water inlet pipe 4 of the refrigerating machine is connected to the gas presser 14 through the gas presser water inlet pipe 140, and more particularly, is connected to the bearing box cooling coil 142 in the gas presser 14 to pass the cooling water into the bearing box cooling coil 142 for heat exchange and temperature reduction. In the embodiment, a plurality of gas pressers 14 are arranged, and a plurality of water inlet branch pipes 1401 are arranged on the pipeline of the gas presser water inlet pipe 140 and connected to the gas pressers 14. The number of the water inlet branch pipes 1401 is adjusted according to the number of the gas pressers 14. One branch pipe is matched with one gas presser, and the gas pressers 14 do not interfere with each other.

[0030] The first stop valve 12 is arranged on the cooling water inlet pipe 4 of the refrigerating machine, and is used to control the on-off of the cooling water and isolate the refrigerating machine from the gas presser 14. The first stop valve 12 can quickly cut off the water flow in an emergency.

[0031] In addition, in order to realize the closed circulation of the cooling water of the gas presser 14, the gas presser water outlet pipe 141 is further connected to the bearing box cooling coil 142 of the gas presser 14, and the gas presser water outlet pipe 141 is connected to the cooling water return pipe 5 of the refrigerating machine. Thus, the cooling water in the gas presser 14 after heat exchange through the bearing box cooling coil 142 is introduced into the cooling water return pipe 5 of the refrigerating machine through the water outlet pipe. One end of the cooling water return pipe 5 of the refrigerating machine is connected to the air compressor cooling tower 1, and the cooling water is returned to the air compressor cooling tower 1 through the cooling water return pipe 5 of the refrigerating machine. The cooling water after heat exchange has a higher temperature, and is returned to the air compressor cooling tower 1 for heat exchange and temperature reduction for recycling.

[0032] At the same time, the gas presser water outlet pipe 141 is also connected to the gas presser 14 through a plurality of water outlet branch pipes 1411, and one water outlet branch pipe is matched with one coil and one gas presser.

[0033] Similarly, in the embodiment, the second stop valve 13 is arranged on the cooling water return pipe 5 of the refrigerating machine, and is used to control the on-off of the return water and isolate the refrigerating machine from the gas presser 14. The second stop valve 13 can quickly cut off the return water in an emergency.

[0034] In the embodiment, the first manual butterfly valve 6 is arranged on the pipeline between the air compressor cooling tower 1 and the air compressor cooling water pump 3, and is used to control the on-off of the cooling water.

[0035] And the pipeline between the air compressor cooling water pump 3 and the cold dryer cooling water inlet pipe 4, along the flow direction of cooling water, in turn provided with check valve 7, electric butterfly valve 8 and the second manual butterfly valve 9. The setting of check valve 7, prevent cooling water in the system backflow, ensure cooling water unidirectional flow, avoid water pump downtime water backflow, protect water pump and pipeline system. Electric butterfly valve 8 is used for automatic control cooling water on-off and flow. The second manual butterfly valve 9 is used for manual adjustment or cut off cooling water, for maintenance or repair manual closing water flow, also can be used as the standby control means of electric butterfly valve 8. Check valve 7, electric butterfly valve 8 and the second manual butterfly valve 9 synergistic effect, ensure the safe, stable, efficient operation of cooling water system.

[0036] In addition, the downstream of the second manual butterfly valve 9 is also provided with a self-cleaning filter 10 in parallel, the setting of filter removes the particulate matter, silt and other impurities in cooling water, prevents impurities into the cold dryer, avoids blocking or damage equipment, ensures the smooth of cooling water, maintains the efficient operation of the cold dryer.

[0037] To ensure that in the case of air compressor sudden power failure or water pump failure caused by water pump downtime, in the embodiment, the connection between the cold dryer cooling water inlet pipe 4 and the gas pressurizer inlet pipe 140 is also provided with emergency cooling water pipeline 11, connected by metal hose quick connector, when air compressor sudden power failure or water pump failure, the use of emergency cooling water can quickly restore cooling water.

[0038] In summary, the cooling water circulation system for the gas pressurizer disclosed in the utility model, refer to Figure 3 , by connecting the gas pressurizer inlet and outlet pipe to the inlet and outlet pipe of the air compressor and the cold dryer, the cooling water in the cooling tower of the air compressor is treated by the self-cleaning filter, then delivered to the inlet pipe of the gas pressurizer, distributed to each inlet branch pipe through the inlet pipe of the gas pressurizer, then enters the bearing box cooling coil in the gas pressurizer, and then connected to the outlet pipe of the gas pressurizer through the outlet branch pipe, so that the cooling water in the gas pressurizer is heat-exchanged, then recycled to the gas pressurizer for heat exchange, thereby forming a closed cooling water circulation system for the gas pressurizer, which greatly reduces the water cost and the original sewage treatment cost, and realizes environmental protection, energy saving and cost reduction.

[0039] In addition, to ensure normal operation of the system, an emergency cooling water pipeline 11 is arranged at the connection between the cold dryer cooling water inlet pipe 4 and the gas pressurizer inlet pipe 140, which can ensure that the cooling water is normally used in the case of air compressor sudden power failure or water pump failure.

[0040] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A cooling water circulation system for a coal gas pressurizing machine, characterized by, It includes: Air compressor cooling tower (1); Air compressor cooling tower fan (2), the air compressor cooling tower fan (2) is arranged at the top of the air compressor cooling tower (1); Air compressor cooling water pump (3), one end of the air compressor cooling water pump (3) is connected with the air compressor cooling tower (1) through a pipeline, and the other end of the air compressor cooling water pump (3) is connected with a cold dryer cooling water inlet pipe (4) through a pipeline; the air compressor cooling water pump (3) is used for pumping cooling water in the air compressor cooling tower (1) into the cold dryer cooling water inlet pipe (4); the cold dryer cooling water inlet pipe (4) is connected with a gas pressurizing machine through a gas pressurizing machine water inlet pipe; The cold dryer cooling water return pipe (5) is connected with a gas pressurizing machine water outlet pipe at one end, and is connected with the air compressor cooling tower (1) at the other end.

2. A cooling water circulation system for a gas press according to claim 1, wherein A first manual butterfly valve (6) is arranged on the pipeline between the air compressor cooling tower (1) and the air compressor cooling water pump (3).

3. A cooling water circulation system for a gas press according to claim 1, wherein A check valve (7), an electric butterfly valve (8) and a second manual butterfly valve (9) are sequentially arranged on the pipeline between the air compressor cooling water pump (3) and the cold dryer cooling water inlet pipe (4) along the flow direction of the cooling water.

4. A cooling water circulation system for a gas press according to claim 3, wherein A self-cleaning filter (10) is arranged downstream of the second manual butterfly valve (9) in parallel.

5. A cooling water circulation system for a gas press according to claim 1, wherein An emergency cooling water pipeline (11) is further arranged at the connection between the cold dryer cooling water inlet pipe (4) and the gas pressurizing machine water inlet pipe.

6. A cooling water circulation system for a gas press according to claim 1, wherein A first stop valve (12) is arranged on the cold dryer cooling water inlet pipe (4), and the cold dryer cooling water inlet pipe (4) is used for conveying the cooling water pumped out by the air compressor cooling water pump (3) into a bearing box cooling coil in the gas pressurizing machine.

7. A cooling water circulation system for a gas press according to claim 6, wherein A second stop valve (13) is arranged on the cold dryer cooling water return pipe (5), and the cold dryer cooling water return pipe (5) is used for returning the cooling water after heat exchange in the bearing box cooling coil in the gas pressurizing machine to the air compressor cooling tower (1) for heat exchange and cooling.

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