CN202642568U

CN202642568U - Heat tracing system of polyoxytetramethylene glycol (PTG) storage tank

Info

Publication number: CN202642568U
Application number: CN 201220187069
Authority: CN
Inventors: 张国军
Original assignee: Changle Hengshen Synthetic Fiber Co Ltd
Current assignee: Changle Hengshen Synthetic Fiber Co Ltd
Priority date: 2012-04-27
Filing date: 2012-04-27
Publication date: 2013-01-02
Anticipated expiration: 2022-04-27

Abstract

The utility model provides a heat tracing system of a polyoxytetramethylene glycol (PTG) storage tank. The heat tracing system of the PTG storage tank is used to match with the PTG storage tank. The heat tracing system of the PTG storage tank comprises a constant-temperature water storage tank, a water pump, a water inlet pipe, a water outlet pipe and a coil pipe, wherein the coil pipe is wound outside the PTG storage tank from bottom to top, the lower end of the constant-temperature water storage tank is connected with the water pump, the water pump is connected with the lower end of the coil pipe through the water inlet pipe, a gas exhaust pipe is arranged at the upper end of the coil pipe, the coil pipe is connected with the constant-temperature water storage tank through the water outlet pipe, a valve is arranged at the upper end of the coil pipe, and a valve is arranged at the lower end of the coil pipe. By means of the heat tracing system of the PTG storage tank, the uneven heat tracing problem of the PTG storage tank is solved.

Description

A kind of tracing system of PTG storage tank

[technical field]

The utility model relates to a kind of tracing system of PTG storage tank.

[background technology]

Because the physical property of the raw materials for production polytetramethylene ether diol (being PTG) of spandex determines that its storage temperature need to maintain about 60 ℃, at present, companion's heat of PTG storage tank mostly realizes by the resistance to heat electric tracing.And there are some drawbacks in electric tracing control: in the process of insulation, can be at several measuring points of resistance to heat electric tracing distribution, obtain certain section electrically heat tracing temperature of resistance to heat by the temperature that detects measuring point, the resistance to heat electric tracing just no longer heats after the measuring point temperature reaches setting value; But, because it is comparatively thin that measuring point distributes, just can't detect from the position of measuring point away from, and detect by companion's enthusiasm condition of measuring point to this PTG storage tank, accuracy rate is low, cause easily part resistance to heat electric tracing section temperature to cross low and do not detect, affect the storage of polytetramethylene ether diol.

[summary of the invention]

The technical problems to be solved in the utility model is to provide a kind of tracing system of PTG storage tank, can solve the inhomogeneous problem of companion's heat of PTG storage tank.

The utility model is achieved in that

A kind of tracing system of PTG storage tank, described tracing system cooperates a PTG storage tank to use, comprise a constant temperature tank, a water pump, a coolant inlet pipe, a coolant outlet pipe and a coil pipe, described coil pipe is coiled in the PTG storage tank outside from top to bottom, described constant temperature tank lower end links to each other with water pump, described water pump links to each other with the lower end of coil pipe by described coolant inlet pipe, the upper end of described coil pipe is provided with a freeing pipe, and link to each other with the constant temperature tank by described coolant outlet pipe, the top and bottom of described coil pipe are provided with a valve.

The utility model has the advantage of:

Contain the thermostatted water about 60 ° in the constant temperature tank, enter in the coil pipe that is coiled in the PTG storage tank outside, flowing from top to bottom, and the thermostatted water flowing power about 60 ° is strong can make PTG storage tank companion heat evenly and can remain on about 60 °, PTG in the storage tank can not cross low viscosity because of local temperature to be increased, stop up the delivery duct of PTG, simultaneously, cooling water expansion tank is got back to again the constant temperature tank by coolant outlet pipe, repeated usage has been saved resource.

[description of drawings]

In conjunction with the embodiments the utility model is further described with reference to the accompanying drawings.

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

[specific embodiment]

See also shown in Figure 1ly, embodiment of the present utility model is described in detail.

As shown in Figure 1, the tracing system of a kind of PTG storage tank that the utility model is related, described tracing system cooperates a PTG storage tank 1 to use, comprise a constant temperature tank 2, one water pump 3, one coolant inlet pipe 4, one coolant outlet pipe 5 and a coil pipe 6, described coil pipe 6 is coiled in PTG storage tank 1 outside from top to bottom, described constant temperature tank 2 lower ends link to each other with water pump 3, described water pump 3 links to each other with the lower end of coil pipe 6 by described coolant inlet pipe 4, the upper end of described coil pipe 6 is provided with a freeing pipe 7, and link to each other with constant temperature tank 2 by described coolant outlet pipe 5, the top and bottom of described coil pipe 6 are provided with a valve 8.

Described freeing pipe 7 can with the Bas Discharged in the coil pipe 6, make thermostatted water can be full of the coil pipe of whole piece.

Operating process is as follows: open the valve 8 that coil pipe 6 top and bottom arrange, open water pump 3, about 60 ° in the constant temperature tank 2 thermostatted waters by in the coolant inlet pipe 4 suction coil pipes 6, are flowed out from the upper end of coil pipe 6 at last, and get back in the constant temperature tank 2 through coolant outlet pipe 5; Repeat said process.

Contain the thermostatted water about 60 ° in the utility model constant temperature tank 2, enter into coiling 6 in the coil pipe in PTG storage tank 1 outside, flowing from top to bottom, and the thermostatted water flowing power about 60 ° is strong can make PTG storage tank 1 companion's heat evenly and can remain on about 60 °, PTG in the storage tank can not cross low viscosity because of local temperature to be increased, stop up the delivery duct of PTG, simultaneously, cooling water expansion tank is got back to again the constant temperature tank by coolant outlet pipe, repeated usage has been saved resource.

Although more than described the specific embodiment of the present utility model; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present utility model; those of ordinary skill in the art are in modification and the variation of the equivalence of doing according to spirit of the present utility model, all should be encompassed in the scope that claim of the present utility model protects.

Claims

1. the tracing system of a PTG storage tank, described tracing system cooperates a PTG storage tank to use, it is characterized in that: comprise a constant temperature tank, a water pump, a coolant inlet pipe, a coolant outlet pipe and a coil pipe, described coil pipe is coiled in the PTG storage tank outside from top to bottom, described constant temperature tank lower end links to each other with water pump, described water pump links to each other with the lower end of coil pipe by described coolant inlet pipe, the upper end of described coil pipe is provided with a freeing pipe, and link to each other with the constant temperature tank by described coolant outlet pipe, the top and bottom of described coil pipe are provided with a valve.